Pair-tunneling states in semiconductor quantum dots: Ground-state behavior in a magnetic field

Citation:
Lee, E, Puzder A, Chou MY, Uzer T, Farrelly D.  1998.  Pair-tunneling states in semiconductor quantum dots: Ground-state behavior in a magnetic field, May. Physical Review B. 57:12281-12284., Number 19

Abstract:

Using classical mechanical and quantum Monte Carlo methods we trace the ground-state behavior with an applied magnetic field of localized electron pair states in a quantum dot. By developing a method to treat nonconserved paramagnetic interactions using variational and diffusion quantum Monte Carlo techniques we find (i) a single-triplet transition at very small magnetic field strengths, (ii) enhanced localization of the two electrons with increasing magnetic field, and (iii) a mechanism for pair breakup that is different from that proposed recently by Wan et al. [Phys. Rev. Lett. 75, 2879 (1995)]. [S0163-1829(98)04016-8].

Notes:

ISI Document Delivery No.: ZP518Times Cited: 12Cited Reference Count: 12Cited References: Farrelly D, 1998, PHYS REV LETT, V80, P3884, DOI 10.1103/PhysRevLett.80.3884 Wan Y, 1997, PHYS REV LETT, V78, P3979, DOI 10.1103/PhysRevLett.78.3979 Jones MD, 1997, PHYS REV E, V55, P6202, DOI 10.1103/PhysRevE.55.6202 Cerjan C, 1997, PHYS REV A, V55, P2222, DOI 10.1103/PhysRevA.55.2222 Wan Y, 1997, PHYS REV B, V55, P5313, DOI 10.1103/PhysRevB.55.5313 RAIKH ME, 1997, PHYS REV LETT, V77, P3980 Raikh ME, 1996, PHYS REV LETT, V77, P1354, DOI 10.1103/PhysRevLett.77.1354 WAN Y, 1995, PHYS REV LETT, V75, P2879, DOI 10.1103/PhysRevLett.75.2879 ASHOORI RC, 1993, PHYSICA B, V184, P378, DOI 10.1016/0921-4526(93)90385-J PANG T, 1990, PHYS REV LETT, V65, P1635, DOI 10.1103/PhysRevLett.65.1635 UMRIGAR CJ, 1988, PHYS REV LETT, V60, P1719, DOI 10.1103/PhysRevLett.60.1719 HILL GW, 1878, AM J MATH, V1, P5, DOI 10.2307/2369430Lee, E Puzder, A Chou, MY Uzer, T Farrelly, DAMERICAN PHYSICAL SOCCOLLEGE PK

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