Quantum detailed balance conditions with time reversal: the finite-dimensional case

Franco Fagnola, and Veronica Umanità. "Quantum detailed balance conditions with time reversal: the finite-dimensional case." Banach Center Publications 96.1 (2011): 159-174. <http://eudml.org/doc/282552>.

@article{FrancoFagnola2011,
abstract = {We classify generators of quantum Markov semigroups on (h), with h finite-dimensional and with a faithful normal invariant state ρ satisfying the standard quantum detailed balance condition with an anti-unitary time reversal θ commuting with ρ, namely $tr(ρ^\{1/2\}xρ^\{1/2\}_t(y)) = tr(ρ^\{1/2\}θy*θρ^\{1/2\}_t(θx*θ))$ for all x,y ∈ and t ≥ 0. Our results also show that it is possible to find a standard form for the operators in the Lindblad representation of the generators extending the standard form of generators of quantum Markov semigroups satisfying the usual quantum detailed balance condition with non-symmetric multiplications $x ↦ ρ^\{s\}xρ^\{1-s\}$ (s ∈ [0,1], s ≠ 1/2) whose generators must commute with the modular group associated with ρ. This supports our conclusion that the most appropriate non-commutative version of the classical detailed balance condition is the above standard quantum detailed balance condition with an anti-unitary time reversal.},
author = {Franco Fagnola, Veronica Umanità},
journal = {Banach Center Publications},
keywords = {quantum detailed balance; quantum Markov semigroup; Lindblad representation},
language = {eng},
number = {1},
pages = {159-174},
title = {Quantum detailed balance conditions with time reversal: the finite-dimensional case},
url = {http://eudml.org/doc/282552},
volume = {96},
year = {2011},
}

TY - JOUR
AU - Franco Fagnola
AU - Veronica Umanità
TI - Quantum detailed balance conditions with time reversal: the finite-dimensional case
JO - Banach Center Publications
PY - 2011
VL - 96
IS - 1
SP - 159
EP - 174
AB - We classify generators of quantum Markov semigroups on (h), with h finite-dimensional and with a faithful normal invariant state ρ satisfying the standard quantum detailed balance condition with an anti-unitary time reversal θ commuting with ρ, namely $tr(ρ^{1/2}xρ^{1/2}_t(y)) = tr(ρ^{1/2}θy*θρ^{1/2}_t(θx*θ))$ for all x,y ∈ and t ≥ 0. Our results also show that it is possible to find a standard form for the operators in the Lindblad representation of the generators extending the standard form of generators of quantum Markov semigroups satisfying the usual quantum detailed balance condition with non-symmetric multiplications $x ↦ ρ^{s}xρ^{1-s}$ (s ∈ [0,1], s ≠ 1/2) whose generators must commute with the modular group associated with ρ. This supports our conclusion that the most appropriate non-commutative version of the classical detailed balance condition is the above standard quantum detailed balance condition with an anti-unitary time reversal.
LA - eng
KW - quantum detailed balance; quantum Markov semigroup; Lindblad representation
UR - http://eudml.org/doc/282552
ER -