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Physical Review B - Condensed Matter and Materials Physics
Volumn 80, Issue 24, 2009, Pages
Quantum Monte Carlo calculation of the energy band and quasiparticle effective mass of the two-dimensional Fermi fluid
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EID: 77954717349     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.245104     Document Type: Article
Times cited : (28)
References (30)
  • 7
    • 18244368987 scopus 로고    scopus 로고
    • Measurements of the density-dependent many-body electron mass in two dimensional GaAs/AlGaAs heterostructures
    • DOI 10.1103/PhysRevLett.94.016405, 016405
    • Y.-W. Tan, J. Zhu, H. L. Stormer, L. N. Pfeiffer, K. W. Baldwin, and K. W. West, Phys. Rev. Lett. 94, 016405 (2005). 10.1103/PhysRevLett.94.016405 (Pubitemid 40629825)
    • (2005) Physical Review Letters , vol.94 , Issue.1 , pp. 1-4
    • Tan, Y.-W.1    Zhu, J.2    Stormer, H.L.3    Pfeiffer, L.N.4    Baldwin, K.W.5    West, K.W.6
  • 15
    • 29144533377 scopus 로고    scopus 로고
    • Spin polarization dependence of carrier effective mass in semiconductor structures: Spintronic effective mass
    • DOI 10.1103/PhysRevLett.95.256603, 256603
    • Y. Zhang and S. Das Sarma, Phys. Rev. Lett. 95, 256603 (2005). 10.1103/PhysRevLett.95.256603 (Pubitemid 41816012)
    • (2005) Physical Review Letters , vol.95 , Issue.25 , pp. 1-4
    • Zhang, Y.1    Das Sarma, S.2
  • 18
    • 77954701560 scopus 로고    scopus 로고
    • The Fermi wave vector is kF =√2/ rs for the 2D paramagnetic fluid and 2/ rs for the 2D ferromagnetic fluid.
    • The Fermi wave vector is k F = √ 2 / r s for the 2D paramagnetic fluid and 2 / r s for the 2D ferromagnetic fluid.
  • 20
    • 36749106669 scopus 로고
    • 10.1063/1.432868
    • J. B. Anderson, J. Chem. Phys. 65, 4121 (1976). 10.1063/1.432868
    • (1976) J. Chem. Phys. , vol.65 , pp. 4121
    • Anderson, J.B.1
  • 25
    • 33947227272 scopus 로고    scopus 로고
    • Alleviation of the fermion-sign problem by optimization of many-body wave functions
    • DOI 10.1103/PhysRevLett.98.110201
    • C. J. Umrigar, J. Toulouse, C. Filippi, S. Sorella, and R. G. Hennig, Phys. Rev. Lett. 98, 110201 (2007). 10.1103/PhysRevLett.98.110201 (Pubitemid 46434400)
    • (2007) Physical Review Letters , vol.98 , Issue.11 , pp. 110201
    • Umrigar, C.J.1    Toulouse, J.2    Filippi, C.3    Sorella, S.4    Hennig, R.G.5
  • 26
    • 61949416875 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.79.085414
    • N. D. Drummond and R. J. Needs, Phys. Rev. B 79, 085414 (2009). 10.1103/PhysRevB.79.085414
    • (2009) Phys. Rev. B , vol.79 , pp. 085414
    • Drummond, N.D.1    Needs, R.J.2
  • 27
    • 77954724263 scopus 로고    scopus 로고
    • The additional electron is inserted in orbital exp (ikr ) and allowed to correlate with the other N electrons in the system. Operationally, this means that we extend the Jastrow factor and backflow function to include the extra electron, giving a wave function that is an approximation to an energy eigenstate of the (N+1 ) -electron system. We then use this wave function as the trial wave function in a DMC calculation to determine the excited-state energy within the fixed-node approximation.
    • The additional electron is inserted in orbital exp (i k r) and allowed to correlate with the other N electrons in the system. Operationally, this means that we extend the Jastrow factor and backflow function to include the extra electron, giving a wave function that is an approximation to an energy eigenstate of the (N + 1) -electron system. We then use this wave function as the trial wave function in a DMC calculation to determine the excited-state energy within the fixed-node approximation.
  • 30
    • 77954730315 scopus 로고    scopus 로고
    • The ferromagnetic data of Padmanabhan (Ref.) were obtained in a high external magnetic field, which was not present in our calculations. However, the normal component of the magnetic field, which is the only component that affects the behavior of an ideal 2D HEG, was relatively small.
    • The ferromagnetic data of Padmanabhan (Ref.) were obtained in a high external magnetic field, which was not present in our calculations. However, the normal component of the magnetic field, which is the only component that affects the behavior of an ideal 2D HEG, was relatively small.

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