TY - JOUR
T1 - Quantum Brownian motion of a charged oscillator in a magnetic field coupled to a heat bath through momentum variables
AU - Bhattacharjee, Suraka
AU - Satpathi, Urbashi
AU - Sinha, Supurna
N1 - Funding Information:
S.B. thanks Raman research Institute for funding and infractructural facilities. S.B., U.S. and S.S. thank the anonymous reviewers for bringing up several points and references that have improved our paper.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/11/1
Y1 - 2022/11/1
N2 - We study the Quantum Brownian motion of a charged particle moving in a harmonic potential in the presence of an uniform external magnetic field and linearly coupled to an Ohmic bath through momentum variables. We analyse the growth of the mean square displacement of the particle in the classical high temperature domain and in the quantum low temperature domain dominated by zero point fluctuations. We also analyse the Position Response Function and the long time tails of various correlation functions. We notice some distinctive features, different from the usual case of a charged quantum Brownian particle in a magnetic field and linearly coupled to an Ohmic bath via position variables.
AB - We study the Quantum Brownian motion of a charged particle moving in a harmonic potential in the presence of an uniform external magnetic field and linearly coupled to an Ohmic bath through momentum variables. We analyse the growth of the mean square displacement of the particle in the classical high temperature domain and in the quantum low temperature domain dominated by zero point fluctuations. We also analyse the Position Response Function and the long time tails of various correlation functions. We notice some distinctive features, different from the usual case of a charged quantum Brownian particle in a magnetic field and linearly coupled to an Ohmic bath via position variables.
KW - Correlation functions
KW - Langevin equation
KW - Mean square displacement
KW - Momentum coupling
KW - Quantum Brownian motion
KW - Response function
UR - http://www.scopus.com/inward/record.url?scp=85135947306&partnerID=8YFLogxK
U2 - 10.1016/j.physa.2022.128010
DO - 10.1016/j.physa.2022.128010
M3 - Article
AN - SCOPUS:85135947306
SN - 0378-4371
VL - 605
JO - Physica A: Statistical Mechanics and its Applications
JF - Physica A: Statistical Mechanics and its Applications
M1 - 128010
ER -