Quantum dynamics in nonequilibrium strongly correlated environments

被引：11

作者：

Hastings, MB ^{[1
]}

Martin, I

Mozyrsky, D

机构：

[1] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.68.035101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider a biased quantum point contact between two Luttinger liquids measuring a quantum-mechanical system (oscillator). There are three main physical results. First, we find that for voltages higher than the oscillator level spacing, the effect of the measurement is equivalent to coupling to a heat bath, with an effective temperature that only depends on the device I-V characteristic. Second, we find that this heating changes the I-V characteristics on the junction. Finally, we predict a modulation of the tunneling current at the oscillator frequency. Also, we find that a generalized nonequilibrium fluctuation-dissipation relation connects the decoherence and dissipation of the oscillator to the current-voltage characteristics of the device.

引用

页数：5

共 29 条

[1]

BLOCH F, 1946, PHYS REV, V70, P460, DOI 10.1103/PhysRev.70.460

[2]

Braginsky V. B, 1992, QUANTUM MEASUREMENT

[3] TUNNELING AND QUANTUM-NOISE IN ONE-DIMENSIONAL LUTTINGER LIQUIDS [J].

CHAMON, CD ;

FREED, DE ;

WEN, XG .

PHYSICAL REVIEW B, 1995, 51 (04) :2363-2379

[4] Microscopic derivation of rate equations for quantum transport [J].

Gurvitz, SA ;

Prager, YS .

PHYSICAL REVIEW B, 1996, 53 (23) :15932-15943

[5] Measurements with a noninvasive detector and dephasing mechanism [J].

Gurvitz, SA .

PHYSICAL REVIEW B, 1997, 56 (23) :15215-15223

[6] Growth of nanotubes for probe microscopy tips [J].

Hafner, JH ;

Cheung, CL ;

Lieber, CM .

NATURE, 1999, 398 (6730) :761-762

[7] Full frequency back-action spectrum of a single-electron transistor during qubit readout -: art. no. 046802 [J].

Johansson, G ;

Käck, A ;

Wendin, G .

PHYSICAL REVIEW LETTERS, 2002, 88 (04) :4

[8] Coulomb interactions and mesoscopic effects in carbon nanotubes [J].

Kane, C ;

Balents, L ;

Fisher, MPA .

PHYSICAL REVIEW LETTERS, 1997, 79 (25) :5086-5089

[9] TRANSPORT IN A ONE-CHANNEL LUTTINGER LIQUID [J].

KANE, CL ;

FISHER, MPA .

PHYSICAL REVIEW LETTERS, 1992, 68 (08) :1220-1223

[10]

KELDYSH LV, 1965, SOV PHYS JETP-USSR, V20, P1018

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