Numerical and analytical approach to the quantum dynamics of two coupled spins in bosonic baths

被引：29

作者：

Sergi, Alessandro ^{[1
]}

Sinayskiy, Ilya ^{[2
]}

Petruccione, Francesco ^{[2
,3
]}

机构：

[1] Univ KwaZulu Natal, Sch Phys, ZA-3209 Pietermaritzburg, South Africa

[2] Univ KwaZulu Natal, Sch Phys, Quantum Res Grp, ZA-4001 Durban, South Africa

[3] Univ KwaZulu Natal, Natl Inst Theoret Phys, ZA-4001 Durban, South Africa

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

INFLUENCE FUNCTIONALS;

D O I：

10.1103/PhysRevA.80.012108

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The quantum dynamics of a spin chain interacting with multiple bosonic baths is described in a mixed Wigner-Heisenberg representation. The formalism is illustrated by simulating the time evolution of the reduced density matrix of two coupled spins, where each spin is also coupled to its own bath of harmonic oscillators. In order to prove the validity of the approach, an analytical solution in the Born-Markov approximation is found. The agreement between the two methods is shown.

引用

下载

页数：7

共 50 条

[41] Optical Measurement and Modeling of Interactions between Two Hole Spins or Two Electron Spins in Coupled InAs Quantum Dots
Greilich, A.
Badescu, S. C.
Kim, D.
Bracker, A. S.
Gammon, D.
PHYSICAL REVIEW LETTERS, 2013, 110 (11)
[42] QUANTUM LANGEVIN DYNAMICS OF A 2-STATE SYSTEM COUPLED TO A BOSONIC BATH
TSUZUKI, T
PROGRESS OF THEORETICAL PHYSICS, 1989, 81 (04): : 770 - 782
[43] Quantum dynamics of two coupled qubits
Milburn, GJ
Laflamme, R
Sanders, BC
Knill, E
PHYSICAL REVIEW A, 2002, 65 (03) : 1 - 10
[44] Coupled electron-phonon transport from molecular dynamics with quantum baths
Lue, J. T.
Wang, Jian-Sheng
JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (02)
[45] Quantum dynamics of coupled bosonic wells within the Bose-Hubbard picture
Franzosi, R
Penna, V
Zecchina, R
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2000, 14 (09): : 943 - 961
[46] Quantum thermodynamics in the random matrix approach: a study of λ-three-level atom coupled to two heat baths
Moradian, A.
EUROPEAN PHYSICAL JOURNAL PLUS, 2024, 139 (08):
[47] Decoherent dynamics of a two-level system coupled to a sea of spins
Shao, JS
Hänggi, P
PHYSICAL REVIEW LETTERS, 1998, 81 (26) : 5710 - 5713
[48] Relaxation, thermalization, and Markovian dynamics of two spins coupled to a spin bath
De Raedt, H.
Jin, F.
Katsnelson, M. I.
Michielsen, K.
PHYSICAL REVIEW E, 2017, 96 (05)
[49] Thermalization dynamics of two correlated bosonic quantum wires after a split
Huber, Sebastian
Buchhold, Michael
Schmiedmayer, Joerg
Diehl, Sebastian
PHYSICAL REVIEW A, 2018, 97 (04)
[50] Decoherence of coupled electron spins via nuclear spin dynamics in quantum dots
Yang, W.
Liu, R. B.
PHYSICAL REVIEW B, 2008, 77 (08)

← 1 2 3 4 5 →