user-k33231a@aalto.fi

Research groups

Quantum Many-Body Physics publications

Preprints (2)

  1. Fan, Z., Uppstu, A., Ari Harju, A., Dominant source of disorder in graphene: Charged impurities or ripples?, Submitted to Physical Review Letters on 16.5.2016, http://arxiv.org/abs/1605.03715
  2. Hirvonen, P., Ervasti, M.M., Fan, Z., Jalalvand, M., Seymour, M., Vaez Allaei, S.M., Provatas, N., Harju, A., Elder, K.R., Ala-Nissila, T., Multiscale modeling of polycrystalline graphene: A comparison of structure and defect energies of realistic samples from phase field crystal models, Submitted to Physical Review B on 12.5.2016, http://arxiv.org/abs/1605.03765

2017 (3)

  1. Kumar, A., Banerjee, K., Dvorak, M., Schulz, F., Harju, A., Rinke, P., and Liljeroth, P., Charge-Transfer Driven Nonplanar Adsorption of F4TCNQ Molecules on Epitaxial Graphene, ACS Nano 11, 4960-4968 (2017). http://pubs.acs.org/doi/abs/10.1021/acsnano.7b01599
  2. Drost, R. Ojanen, T. Harju, A. and Liljeroth, P., Topological states in engineered atomic lattices, Nature Physics 13, 668-671 (2017). http://dx.doi.org/10.1038/nphys4080
  3. Ervasti, M.M. , Schulz, F., Liljeroth, P., Harju, A., Single- and many-particle description of scanning tunneling spectroscopy, Journal of Electron Spectroscopy and Related Phenomena 219, 63-71 (2017). http://dx.doi.org/10.1016/j.elspec.2016.11.004

2016 (3)

  1. Vanhala, T.I., Siro, T., Liang, L., Troyer, M., Harju, A., and Törmä, P., Topological phase transitions in the repulsively interacting Haldane-Hubbard model, Physical Review Letters 116, 225305 (2016). http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.225305
  2. Mortazavi, B., Fan, Z., Pereira, L.F.C., Harju, A, Rabczuk, T., Amorphized graphene: A stiff material with low thermal conductivity, Carbon 103, 318-326 (2016). http://dx.doi.org/10.1016/j.carbon.2016.03.007
  3. Zubiaga, A., Ervasti, M.M., Makkonen, I., Harju, A., Tuomisto, F., and Puska, M. J., Modeling positronium beyond the single particle approximation, Journal of Physics B: Atomic, Molecular and Optical Physics 49, 064005 (2016). http://dx.doi.org/10.1088/0953-4075/49/6/064005

2015 (12)

  1. Thomsen, M.R., Ervasti, M.M., Harju, A., and Pedersen, T.G., Spin relaxation in hydrogenated graphene, Physical Review B 92, 195408 (2015). http://dx.doi.org/10.1103/PhysRevB.92.195408
  2. Kimouche, A., Ervasti, M.M., Drost, R., Halonen, S., Harju, A., Joensuu, P.M., Sainio, J., Liljeroth, P., Ultra-narrow metallic armchair graphene nanoribbons, Nature Communications 6, 10177 (2015). http://dx.doi.org/10.1038/ncomms10177
  3. Drost, R., Kezilebieke, S., Ervasti, M.M., Hämäläinen, S.K., Schulz, F., Harju, A., Liljeroth, P., Synthesis of Extended Atomically Perfect Zigzag Graphene - Boron Nitride Interfaces, Scientific Reports 5, 16741 (2015). http://dx.doi.org/10.1038/srep16741
  4. Järvinen, P., Kumar, A., Drost, R., Kezilebieke, S., Uppstu, A., Harju, A., Liljeroth, P., Field-Emission Resonances on Graphene on Insulators, Journal of Physical Chemistry C 119, 23951-23954 (2015). http://dx.doi.org/10.1021/acs.jpcc.5b06374
  5. Ervasti, MM; Fan, ZY; Uppstu, A; Krasheninnikov, AV; Harju, A, Silicon and silicon-nitrogen impurities in graphene: Structure, energetics, and effects on electronic transport, Physical Review B 92, pp. 235411 (2015). http://dx.doi.org/10.1103/PhysRevB.92.235412
  6. Fan, Z., Uppstu, A., Harju, A., Electronic and transport properties in geometrically disordered graphene antidot lattices, Physical Review B 91, 125434 (2015). http://dx.doi.org/10.1103/PhysRevB.91.125434
  7. Fan, Z., Pereira, L. F. C., Wang, H.-Q., Zheng, J.-C., Donadio, D., Harju, A., Force and heat current formulas for many-body potentials in molecular dynamics simulation with applications to thermal conductivity calculations, Physical Review B 92, 094301 (2015). http://dx.doi.org/10.1103/PhysRevB.92.094301
  8. Bakker, M.A., Mehl, S., Hiltunen, T., Harju, A., DiVincenzo, D.P., Validity of the single-particle description and charge noise resilience for multi-electron quantum dots, Physical Review B 91, 155425 (2015). http://dx.doi.org/10.1103/PhysRevB.91.155425
  9. Schulz, F., Ijäs, M., Drost, R., Hämäläinen, S.K., Harju, A., Seitsonen, A.P., Liljeroth, P., Many-body transitions in a single molecule visualized by scanning tunnelling microscopy, Nature Physics 11, 229-234 (2015). http://dx.doi.org/10.1038/nphys3212
  10. Hiltunen Tuukka,Bluhm Hendrik, Mehl Sebastian, Harju Ari, Charge-noise tolerant exchange gates of singlet-triplet qubits in asymmetric double quantum dots, Physical Review B 91, 075301 (2015). http://dx.doi.org/10.1103/PhysRevB.91.075301
  11. Vanhala, T. I., Baarsma, J. E., Heikkinen, M. O. J., Troyer, M., Harju, A., and Törmä, P., Superfluidity and Density Order in a Bilayer Extended Hubbard Model, Physical Review B 91, 144510 (2015). http://dx.doi.org/10.1103/PhysRevB.91.144510
  12. Räsänen, E., Odriazola, A., Makkonen, I., and Harju, A., Self-consistent total-energy approximation for electron gas systems, Physica Status Solidi (b) 252, pp. 496-501 (2015). http://dx.doi.org/10.1002/pssb.201451309

2014 (11)

  1. Drost, R., Uppstu, A., Schulz, F., Hämäläinen, S.K., Ervasti, M., Harju, A. and Liljeroth, P., Electronic states at the graphene - hexagonal boron nitride zigzag interface, Nano Letters 14, 5128-5132 (2014). http://pubs.acs.org/doi/abs/10.1021/nl501895h
  2. Järvinen, P., Hämäläinen, S.K., Ijäs, M., Harju A., Liljeroth, P., Self-Assembly and Orbital Imaging of Metal Phthalocyanines on a Graphene Model Surface, Journal of Physical Chemistry C 118, 13320-13325 (2014). http://pubs.acs.org/doi/abs/10.1021/jp504813v
  3. Siro, T., Ervasti, M., and Harju, A., Impurities and Landau level mixing in a fractional quantum Hall state in a flatband lattice model, Physical review B 90, 165101 (2014). http://arxiv.org/abs/1405.2211
  4. Hiltunen T., Harju A., Capacitative coupling of singlet-triplet qubits in different inter-qubit geometries, Physical Review B 90, 125303 (2014). http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.125303
  5. Oksanen, M., Uppstu, A., Laitinen, A., Cox, D.J., Craciun, M., Russo, S., Harju, A., Hakonen, P., Single-mode and multi-mode Fabry-Pérot interference in suspended graphene, Physical Review B 89, 121414(R) (2014). http://dx.doi.org/10.1103/PhysRevB.89.121414
  6. Uppstu, A., Fan, Z., and Harju, A., Obtaining localization properties efficiently using the Kubo-Greenwood formalism, Physical Review B 89, 075420 (2014). http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.075420
  7. Fan, Z., Uppstu, A. and Harju, A., Anderson localization in two-dimensional graphene with short-range disorder: One-parameter scaling and finite-size effects, Physical Review B 89, 245422 (2014). http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.245422
  8. Hiltunen T. and Harju A., Maximal tripartite entanglement between singlet-triplet qubits in quantum dots, Physical Review B 89, 115322 (2014). http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.115322
  9. Tuomisto, F., Norrman, V., and Makkonen, I., On the sensitivity of positron annihilation signals to alloy homogeneity in InxGa1-xN, Journal of Physics: Conference Series 505, 012042 (2014). http://dx.doi.org/10.1088/1742-6596/505/1/012042
  10. Makkonen, I., Ervasti, M. M., Siro, T., and Harju, A., Enhancement models of momentum densities of annihilating electron-positron pairs: The many-body picture of natural geminals, Physical Review B (Rapid Communications) 89, 041105(R) (2014). http://link.aps.org/doi/10.1103/PhysRevB.89.041105
  11. Fan, Z., Uppstu, A., Siro, T., and Harju, A., Efficient linear-scaling quantum transport calculations on graphics processing units and applications on electron transport in graphene, Computer Physics Communications 185, 28-39 (2014). http://arxiv.org/abs/1307.0288

2013 (12)

  1. Hiltunen, T., Ritala, J., Siro, T., and Harju A., Non-adiabatic charge state transitions in singlet-triplet qubits, New Journal of Physics 15, 103015 (2013). http://iopscience.iop.org/1367-2630/15/10/103015/
  2. Järvinen, P., Hämäläinen, S.K., Banerjee, K., Häkkinen, P., Ijäs, M., Harju, A., Liljeroth, P., Molecular self-assembly on graphene on SiO2 and h-BN substrates, Nano Letters 13, 3199-3204 (2013). http://dx.doi.org/10.1021/nl401265f
  3. van der Lit, J., Boneschanscher, M.P., Vanmaekelbergh, D., Ijäs, M., Uppstu, A., Ervasti, M., Harju, A., Liljeroth, P., and Swart, I., Suppression of electron-vibron coupling in graphene nanoribbons contacted via a single atom, Nature Communications 4, 2023 (2013). http://www.nature.com/ncomms/2013/130612/ncomms3023/full/ncomms3023.html
  4. Ijaes, M., Ervasti, M., Uppstu, A., Liljeroth, P., van der Lit, J., Swart, I., Harju, A., Electronic states in finite graphene nanoribbons: Effect of charging and defects, Physical Review B 88, 075429 (2013). http://arxiv.org/abs/1306.2723
  5. Ijäs, M., Havu, P., Harju, A., Interaction of chlorine with Stone-Wales defects in graphene and carbon nanotubes, and thermodynamical prospects of chlorine-induced nanotube unzipping, Physical Review B 87, 205430 (2013). http://prb.aps.org/abstract/PRB/v87/i20/e205430
  6. Tuomisto, F. and Makkonen, I., Defect identification in semiconductors with positron annihilation: Experiment and theory, Reviews of Modern Physics 85, pp. 1583-1631 (2013). http://link.aps.org/doi/10.1103/RevModPhys.85.1583
  7. Räsänen, E., Pittalis, S., Bekcioglu, G., Makkonen, I., Large two-dimensional electronic systems: Self-consistent energies and densities at low cost, Physical Review B 87, 035144 (2013). http://link.aps.org/doi/10.1103/PhysRevB.87.035144
  8. Fan, Z., Siro, T., Harju, A., Accelerated molecular dynamics force evaluation on graphics processing units for thermal conductivity calculations, Computer Physics Communications 184, 1414-1425 (2013). http://arxiv.org/abs/1211.3892
  9. Odriazola, A., Ervasti, M.M., Makkonen, I., Delgado, A., Gonzalez, A., Räsänen, E, and Harju, A., Scaling in the correlation energies of two-dimensional artificial atoms, Journal of Physics: Condensed Matter 25, 505504 (2013). http://dx.doi.org/10.1088/0953-8984/25/50/505504
  10. Harju, A., Siro, T., Federici Canova, F., Hakala, S., Rantalaiho, T., Computational Physics on Graphics Processing Units, Lecture Notes in Computer Science 7782, 3-26 (2013). http://arxiv.org/abs/1210.7930
  11. Siro, T., Harju, A., Time propagation of many-body quantum states on graphics processing units, Lecture Notes in Computer Science 7782, 141-152 (2013). http://dx.doi.org/10.1007/978-3-642-36803-5_10
  12. Kopnin, N.B., Ijäs, M., Harju, A., Heikkilä, T.T., High-temperature surface superconductivity in rhombohedral graphite, Physical Review B 87, 140503 (2013). http://arxiv.org/abs/1210.7595

2012 (10)

  1. Saloriutta, K., Uppstu, A., Harju, A., Puska, M.J., Ab-initio transport fingerprints for resonant scattering in graphene, Physical Review B 86, 235417 (2012). http://link.aps.org/doi/10.1103/PhysRevB.86.235417
  2. Hiltunen, T., Harju, A., Y-junction splitting spin states of moving quantum dot, Physical Review B 86, 121301(R) (2012). http://prb.aps.org/abstract/PRB/v86/i12/e121301
  3. Ijäs, M., Harju, A., Fractional periodicity of persistent current in coupled quantum rings, Physical Review B 85, 235120 (2012). http://prb.aps.org/abstract/PRB/v85/i23/e235120
  4. Uppstu, A. and Harju A., High-field magnetoresistance revealing scattering mechanisms in graphene, Physical Review B 86, 201409(R) (2012). http://link.aps.org/doi/10.1103/PhysRevB.86.201409
  5. Siro, T., and Harju, A., Exact diagonalization of the Hubbard model on graphics processing units, Computer Physics Communications 183, pp. 1884-1889 (2012). http://arxiv.org/abs/1204.3425
  6. Ijäs, M., Havu, P., Harju, A., Fracturing graphene by chlorination: A theoretical viewpoint, Physical Review B 85, 035440 (2012). http://link.aps.org/doi/10.1103/PhysRevB.85.035440
  7. Makkonen, I., Ervasti, M.M., Kauppila, V.J., and Harju, A., Exchange-correlation potentials for inhomogeneous electron systems in two dimensions from exact diagonalization: Comparison with the local-spin-density approximation, Physical Review B 85, 205140 (2012). http://link.aps.org/doi/10.1103/PhysRevB.85.205140
  8. Uppstu, A., Saloriutta, K., Harju, A., Puska, M., and Jauho, A.-P., Electronic transport in graphene-based structures: An effective cross section approach, Physical Review B 85, 041401(R) (2012). http://link.aps.org/doi/10.1103/PhysRevB.85.041401
  9. Makkonen, I., Rauch, C., Mäki, J.-M., and Tuomisto, F., Chemical analysis using coincidence Doppler broadening and supporting first-principles theory: applications to vacancy defects in compound semiconductors, Physica B 407, pp. 2684-2688 (2012). http://dx.doi.org/10.1016/j.physb.2012.02.039
  10. Tuomisto, F., Mäki, J.-M., Rauch, C., and Makkonen, I., On the formation of vacancy defects in III-nitride semiconductors, Journal of Crystal Growth 350, pp. 95-97 (2012).

2011 (9)

  1. Hämäläinen, S.K., Sun, Z., Boneschanscher, M.P., Uppstu, A., Ijäs, M., Harju, A., Vanmaekelbergh, D. and Liljeroth, P., Quantum confined electronic states in atomically well-defined graphene nanostructures, Physical Review Letters 107, 236803 (2011). http://prl.aps.org/abstract/PRL/v107/i23/e236803
  2. Havu, P., Ijäs, M., Harju, A., Hydrogenated graphene on the silicon dioxide surface, Physical Review B 84, 205423 (2011). http://link.aps.org/doi/10.1103/PhysRevB.84.205423
  3. Ijäs, M., Havu, P., Harju, A., Pasanen, P., Spin-asymmetric graphene nanoribbons in graphane on silicon dioxide, Physical Review B 84, 041403 (2011). http://link.aps.org/doi/10.1103/PhysRevB.84.041403
  4. Mäki, J.-M., Makkonen, I., Tuomisto, F., Karjalainen, A., Suihkonen, S., Räisänen, J., Chemekova, T.Yu., and Makarov, Yu.N., Identification of the VAl - ON -defect complex in AlN single crystals, Physical Review B 84, 081204(R) (2011).
  5. Rauch, C., Makkonen, I., Tuomisto, F., Identifying vacancy complexes in compound semiconductors with positron annihilation spectroscopy: a case study of InN, Physical Review B 84, 125201 (2011). http://link.aps.org/doi/10.1103/PhysRevB.84.125201
  6. Drut, Joaquín E., Lähde, Timo A., and Ten, Timour, Momentum Distribution and Contact of the Unitary Fermi Gas, Physical Review Letters 106, 205302 (2011). http://dx.doi.org/10.1103/PhysRevLett.106.205302
  7. Rauch, C., Makkonen, I., Tuomisto, F., Towards Experimental Identification of Vacancy Complexes in InN, physica status solidi (a) 208, pp. 1548-1550 (2011). http://onlinelibrary.wiley.com/doi/10.1002/pssa.201001160/abstract
  8. Johansen, K.M., Zubiaga, A., Makkonen, I., Tuomisto, F., Neuvonen, P.T., Knutsen, K.E., Monakhov, E.V., Kuznetsov, A.Yu., and Svensson, B.G., Identification of substitutional Li in n-type ZnO and its role as an acceptor, Physical Review B 83, 245208:1-7 (2011). http://link.aps.org/doi/10.1103/PhysRevB.83.245208
  9. Särkkä, J., and Harju, A., Spin dynamics at the singlet-triplet crossings in a double quantum dot, New Journal of Physics 13, 043010 (2011). http://iopscience.iop.org/1367-2630/13/4/043010/

2010 (10)

  1. Ijäs, M., Harju, A., Lattice density-functional theory on graphene, Physical Review B 82, 235111 (2010). http://link.aps.org/doi/10.1103/PhysRevB.82.235111
  2. Saarikoski, H., Harju, A., Christensson, J., Bargi, S., Manninen, M., and Reimann, S.M., Coreless vortices in rotating two-component quantum droplets, Europhysics Letters 91, 30006 (2010). http://dx.doi.org/10.1209/0295-5075/91/30006
  3. Saarikoski, H., Reimann, S.M., Harju, A., Manninen, M., Vortices in quantum droplets: Analogies between boson and fermion systems, Reviews of Modern Physics 82, 2785-2834 (2010). http://link.aps.org/doi/10.1103/RevModPhys.82.2785
  4. Hancock, Y., Uppstu, A., Saloriutta, K., Harju, A., and Puska, M.J., Generalized tight-binding transport model for graphene nanoribbon-based systems, Physical Review B 81, 245402 (2010). http://link.aps.org/doi/10.1103/PhysRevB.81.245402
  5. Särkkä, J., and Harju, A., Charge dynamics in two-electron quantum dots, Journal of Physics: Conference Series 245, 012019 (2010). http://iopscience.iop.org/1742-6596/245/1/012019
  6. Makkonen, I., Snicker, A., Puska, M.J., Mäki, J.-M., and Tuomisto, F., Positrons as interface-sensitive probes of polar semiconductor heterostructures, Physical Review B 82, 041307(R) (2010). http://link.aps.org/doi/10.1103/PhysRevB.82.041307
  7. Tölö, E. and Harju, A., Reduced density-matrix functional theory in quantum Hall systems, Physical Review B 81, 075321 (2010). http://link.aps.org/doi/10.1103/PhysRevB.81.075321
  8. Bargi, S., Christensson, J., Saarikoski, H., Harju, A., Kavoulakis, G., Manninen, M., and Reimann, S., Vortices in rotating two-component boson and fermion traps, Physica E 42, 411-415 (2010). http://dx.doi.org/10.1016/j.physe.2009.06.022
  9. Särkkä, J., and Harju, A., Control of a two-electron quantum ring with an external magnetic field, Physica E 42, 844-847 (2010). http://dx.doi.org/10.1016/j.physe.2009.11.147
  10. Tölö, E. and Harju, A., Optimal confinement potential in quantum Hall droplets, Physica E 42, 1050 (2010). http://dx.doi.org/10.1016/j.physe.2009.10.031

2009 (6)

  1. Sääskilahti, K., Harju, A., and Pasanen, P., Gate-controlled current switch in graphene, Applied Physics Letters 95, 092104 (2009). http://link.aip.org/link/?APPLAB/95/092104/1
  2. Särkkä, J., and Harju A., Control of a two-electron double quantum dot with an external magnetic field, Physical Review B 80, 045323 (2009). http://link.aps.org/abstract/PRB/v80/e045323
  3. Bårdsen, G., Tölö, E., and Harju, A., Magnetism in tunable quantum rings, Physical Review B 80, 205308 (5 pages) (2009). http://link.aps.org/doi/10.1103/PhysRevB.80.205308
  4. Tölö, E. and Harju, A., Quantum Hall droplet laterally coupled to a quantum ring, Physical Review B 80, 045303 (2009). http://link.aps.org/abstract/PRB/v80/e045303
  5. Särkkä, J., and Harju, A., Effect of nuclear polarization on spin dynamics in a double quantum dot, Physical Review B 79, 085313 (2009). http://link.aps.org/abstract/PRB/v79/e085313
  6. Tölö, E., Harju, A., Effects of thickness in quantum dots at strong magnetic fields, Physical Review B 79, 075301 (2009). http://link.aps.org/doi/10.1103/PhysRevB.79.075301

2008 (8)

  1. Hancock, Y., Saloriutta, K., Uppstu, A., Harju, A., and Puska, M.J., Spin-Dependence in Asymmetric, V-Shaped-Notched Graphene Nanoribbons, Journal of Low Temperature Physics 153, 393-398 (2008). http://www.springerlink.com/content/8873kx3604152318
  2. Simula, T., Davis, M. J., Blakie, P. B., Superfluidity of an interacting trapped quasi-two-dimensional Bose gas, Physical Review A 77, 023618 (2008). http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000077000002023618000001&idtype=cvips&gifs=yes
  3. Saarikoski, H., Tölö, E., Harju, A., and Räsänen, E., Pfaffian and fragmented states at nu=5/2 in quantum Hall droplets, Physical Review B 78, 195321 (2008). http://link.aps.org/abstract/PRB/v78/e195321
  4. Särkkä, J., and Harju, A., Spin dynamics in a double quantum dot: Exact diagonalization study, Physical Review B 77, 245315 (2008). http://link.aps.org/abstract/PRB/v77/e245315
  5. Hancock, Y., Suorsa, J., Tölö, E., and Harju, A., Fractional periodicity and magnetism of extended quantum rings, Physical Review B 77, 155103 (2008). http://link.aps.org/abstract/PRB/v77/e155103
  6. Hermanns, M., Suorsa, J., Bergholtz, E.J., Hansson, T.H., and Karlhede, A., Quantum Hall wave functions on the torus, Physical Review B 77, 125321 (2008). http://link.aps.org/abstract/PRB/v77/e125321
  7. Räsänen, E., Saarikoski, H., Harju, A., Ciorga, M., and Sachrajda, A.S., Spin droplets in confined quantum Hall systems, Physical Review B 77, 041302(R) (2008). http://link.aps.org/abstract/PRB/v77/e041302
  8. Tölö, E., Suorsa, J., and Harju, A., Interacting electrons on a square quantum dot: vortices and quantized angular momentum, Physica E 40, 1038-1041 (2008). http://dx.doi.org/10.1016/j.physe.2007.09.133

2007 (7)

  1. Pietilä, V., Möttönen, M., and Virtanen, S.M.M.,, Stability of coreless vortices in ferromagnetic spinor Bose-Einstein condensates, Phys. Rev. A 76, 023610 (2007). http://link.aps.org/abstract/PRA/v76/e023610
  2. Huhtamäki, J. A. M., Möttönen, M., Ankerhold, J., and Virtanen, S. M. M., Effects of interactions and noise on tunneling of Bose-Einstein condensates through a potential barrier, Physical Review A 76, 033605 (2007).
  3. Stenberg, M. P. V., Virtanen, P., and Heikkilä, T. T., Phase-dependent noise correlations in normal-superconducting structures, Phys. Rev. B 76, 144504 (2007). http://link.aps.org/abstract/PRB/v76/e144504
  4. Saira, O.-P., Meschke, M., Giazotto, F., Savin, A. M., Möttönen, M., and Pekola, J. P., Heat Transistor: Demonstration of Gate-Controlled Electron Refrigeration, Physical Review Letters 99, 027203 (2007). http://arxiv.org/abs/cond-mat/0702361
  5. Vartiainen, J. J., Möttönen, M., Pekola, J. P., Kemppinen, A., Nanoampere pumping of Cooper pairs, Applied Physics Letters 90, 082102 (2007). http://www.arxiv.org/abs/cond-mat/0612556
  6. Saira, O.-P., Bergholm, V., Ojanen, T., and Möttönen, M., Equivalent qubit dynamics under classical and quantum noise, Phys. Rev. A 75, 012308 (2007). http://arxiv.org/abs/quant-ph/0605241
  7. Spörl, A.K., Schulte-Herbrüggen, T., Glaser, S.J., Bergholm, V., Storcz, M.J., Ferber, J., and Wilhelm, F.K., Optimal control of coupled Josephson qubits, Phys. Rev. A 75, 012302 (2007). http://link.aps.org/abstract/PRA/v75/e012302

2006 (6)

  1. Räsänen, E., Saarikoski, H., Harju, A., Puska, M.J., Yu, Y., and Reimann, S.M., Giant Vortices in Rotating Electron Droplets, Physical Review B 73, 235324 (5 pages) (2006). http://link.aps.org/abstract/PRB/v73/e235324
  2. Harju, A., Saarikoski, H., and Räsänen, E., Half-Integer Filling Factor States in Quantum Dots, Physical Review Letters 96, 126805 (four pages) (2006). http://link.aps.org/abstract/PRL/v96/e126805
  3. Helle, M., Harju, A., Nieminen, R.M., Far-infrared spectra of lateral quantum dot molecules, New Journal of Physics 8, 27 (18 pages) (2006). http://www.iop.org/EJ/abstract/1367-2630/8/2/027/
  4. Gylfadottir, S.S., Harju, A., Jouttenus, T., Webb, C, Interacting electrons on a quantum ring: exact and variational approach, New Journal of Physics 8, 211 (19 pages) (2006). http://dx.doi.org/10.1088/1367-2630/8/9/211
  5. Stenberg, M. P. V., and Särkkä, J., Higher-order mesoscopic fluctuations in quantum wires: Conductance and current cumulants, Physical Review B 74, 035327 (2006). http://link.aps.org/abstract/PRB/v74/e035327
  6. Salo, J., Barnett, S. M., and Stenholm, S., Non-Markovian thermalisation of a two-level atom, Optics Communications 259, 772?780 (2006). http://dx.doi.org/10.1016/j.optcom.2005.09.057

2005 (7)

  1. Helle, M., Harju, A., Nieminen, R.M., Two-electron lateral quantum-dot molecules in a magnetic field, Physical Review B 72, 205329 (2005). http://link.aps.org/abstract/PRB/v72/e205329
  2. Saarikoski, Henri, Harju, Ari, Ground-state of two-dimensional finite electron systems in the Quantum Hall regime, Physical Review Letters 94, 246803 (2005). http://link.aps.org/abstract/PRL/v94/e246803
  3. Harju, A., Variational Monte Carlo for Interacting Electrons in Quantum Dots, Journal of Low Temperature Physics 140, 181 - 210 (2005). http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s10909-005-6308-7
  4. Saarikoski, H., Reimann, S. M., Räsänen, E., Harju, A., and Puska, M. J., Stability of vortex structures in quantum dots, Physical Review B 71, 035421 (2005). http://link.aps.org/abstract/PRB/v71/e035421
  5. Siljamäki, S., Harju, A., Räsänen, E., Suorsa, J., Nieminen, R.M., Diagonalizations on a correlated basis, Physica E 26, 441-445 (2005). http://dx.doi.org/10.1016/j.physe.2004.08.077
  6. Saarikoski, H., Harju, A., Puska, M. J., Nieminen R. M., Vortex formation in quantum dots in high magnetic fields, Physica E 26, 317-321 (2005). http://dx.doi.org/10.1016/j.physe.2004.08.070
  7. Marlo-Helle, M., Harju, A., and Nieminen, R.M., Singlet-triplet oscillations and far-infrared spectrum of four-minima quantum-dot molecule, Physica E 26, 286-290 (2005). http://dx.doi.org/10.1016/j.physe.2004.08.065

2004 (3)

  1. Saarikoski, H., Harju, A., Puska, M. J., Nieminen, R. M., Vortex Clusters in Quantum Dots, Physical Review Letters 93, 116802 (2004). http://link.aps.org/abstract/PRL/v93/e116802
  2. Harju, A., Räsänen, E., Saarikoski, H., Puska, M.J., Nieminen, R.M., and Niemelä, K., Broken symmetry in density-functional theory: Analysis and cure, Physical Review B 69, 153101 (2004). http://link.aps.org/abstract/PRB/v69/e153101
  3. Räsänen, E., Harju, A., Puska, M. J., and Nieminen, R. M., Rectangular quantum dots in high magnetic fields, Physical Review B 69, 165309 (2004). http://link.aps.org/abstract/PRB/v69/e165309

2003 (3)

  1. Marlo, M., Harju, A., and Nieminen, R.M., Role of interactions in the far-infrared spectrum of a lateral quantum dot molecule, Physical Review Letters 91, 187401 (4 pages) (2003). http://link.aps.org/abstract/PRL/v91/e187401
  2. Räsänen, E., Saarikoski, H., Stavrou, V. N., Harju, A., Puska, M. J., and Nieminen, R. M., Electronic structure of rectangular quantum dots, Physical Review B 67, 235307 (2003). http://link.aps.org/abstract/PRB/v67/e235307
  3. Saarikoski, H., Räsänen, E.,Siljamäki, S., Harju, A., Puska, M. J., Nieminen, R. M., Testing of two-dimensional local approximations in the current-spin and spin-density-functional theories, Physical Review B 67, 205327 (2003). http://link.aps.org/abstract/PRB/v67/e205327

2002 (6)

  1. Arrigoni,E., Harju, A.P., Hanke, W., Brendel, B., and Kivelson, S.A, Stripes and superconducting pairing in the t-J model with Coulomb interactions, Physical Review B 65, 134503 (5 pages) (2002).
  2. Harju, A., Siljamäki, S., and Nieminen, R.M., Two-electron quantum dot molecule: Composite particles and the spin phase diagram, Physical review Letters 88, 226804 (4 pages) (2002). http://link.aps.org/abstract/PRL/v88/e226804
  3. Marlo, M., Alatalo, M., Harju, A., and Nieminen, R. M., Lateral diatomic two-dimesional artificial molecules: Classical transitions and quantum-mechanical counterparts, Physical Review B 66, 155322 (7 pages) (2002). http://link.aps.org/abstract/PRB/v66/e155322
  4. Siljamäki, S., Harju, A., Nieminen, R. M., Sverdlov, V. A., Hyvönen, P., Various spin-polarization states beyond the maximum-density droplet: a quantum Monte Carlo study, Physical Review B 65, 121306(R) (4 pages) (2002). http://link.aps.org/abstract/PRB/v65/e121306
  5. Saarikoski, H., Räsänen, E., Siljamäki S., Harju A., Puska, M.J., and Nieminen, R.M., Electronic properties of model quantum-dot structures in zero and finite magnetic fields, European Physical Journal B 26, 241-252 (2002).
  6. Harju, A., Siljamäki, S., and Nieminen, R.M., Wigner molecules in quantum dots: a quantum Monte Carlo study, Physical Review B 65, 075309-1-075309-6 (2002). http://link.aps.org/abstract/PRB/v65/e075309

2000 (2)

  1. Marlo, M., Milman, V., Density-functional study of bulk and surface properties of titanium nitride using differentexchange-correlation functionals, Physical Review B 62, 2899-2907 (2000). http://link.aps.org/abstract/PRB/v62/p2899
  2. Siljamäki, S., Sverdlov, V. A., Harju, A., Hyvönen, P., and Nieminen, R. M., Stability of the maximum-density droplet state in quantum dots: a quantum Monte Carlo study, Physica B: Physics of Condensed Matter 284, pp. 1776-1777 (2000).