Steady quantum coherence in non-equilibrium environment
arXiv:1407.4290 · doi:10.1016/j.aop.2015.05.004
Abstract
We study the steady state of a three-level system in contact with a non-equilibrium environment, which is composed of two independent heat baths at different temperatures. We derive a master equation to describe the non-equilibrium process of the system. For the three level systems with two dipole transitions, i.e., the -type and V-type, we find that the interferences of two transitions in a non-equilibrium environment can give rise to non-vanishing steady quantum coherence, namely, there exist non-zero off-diagonal terms in the steady state density matrix (in the energy representation). Moreover, the non-vanishing off-diagonal terms increase with the temperature difference of the two heat baths. Such interferences of the transitions were usually omitted by secular approximation, for it was usually believed that they only take effect in short time behavior and do not affect the steady state. Here we show that, in non-equilibrium systems, such omission would lead to the neglect of the steady quantum coherence.
15 pages, 5 figures
References in corpus (23)
- Decoherence, einselection, and the quantum origins of the classical
- Quantifying Coherence
- Decoherence Free Subspaces for Quantum Computation
- Noiseless Quantum Codes
- Preserving coherence in quantum computation by pairing quantum bits
- Modeling heat transport through completely positive maps
- Quantum-Classical Transition of Photon-Carnot Engine Induced by Quantum Decoherence
- Quantum coherent biomolecular energy transfer with spatially correlated fluctuations
- Minimal Self-Contained Quantum Refrigeration Machine Based on Four Quantum Dots
- Long-lived quasi-stationary coherences in V-type system driven by incoherent light
- Nonequilibrium quantum criticality in open systems: The dissipation rate as an additional indispensable scaling variable
- Quantum refrigerator driven by current noise
- Modified Bloch-Redfield Master Equation for Incoherent Excitation of Multilevel Quantum Systems
- Long-lived spin entanglement induced by a spatially correlated thermal bath
- Quantum effects in thermal conduction: Nonequilibrium quantum discord and entanglement
- Quantum thermalization of two coupled two-level systems in eigenstate and bare-state representations
- Breakdown of the rotating-wave approximation in entanglement description of spin anti-correlated states
- Criticality in transport through the quantum Ising chain
- Carnot's theorem for nonthermal stationary reservoirs
- Cooling a nanomechanical resonator by a triple quantum dot
- Long-term effect of inter-mode transitions in quantum Markovian process
- Entropy Production of Open Quantum System in Multi-Bath Environment
- Synchro-thermalization of composite quantum system
Cited by in corpus (29)
- Nonequilibrium Physics in Biology
- Steady-state entanglement and coherence of the coupled qubit system in equilibrium and nonequilibrium environments
- Detecting macroscopic quantum coherence with a cavity optomechanical system
- Coherence enhanced quantum metrology in a nonequilibrium optical molecule
- Entropy dynamics of a dephasing model in a squeezed thermal bath
- Photoelectric converters with quantum coherence
- Thermal rectification and heat amplification in a nonequilibrium V-type three-level system
- JRSP of three-particle state via three tripartite GHZ class in quantum noisy channels
- Cycle Flux Ranking of Network Analysis in Quantum Thermal Device
- Steady-state Fano coherences in a V-type system driven by polarized incoherent light
- Full counting statistics and coherences: fluctuation symmetry in heat transport with the Unified quantum master equation
- Quantum coherence-control of thermal energy transport: The V model as a case study
- Resource Theory of Total Quantum Coherence
- Steady bipartite coherence induced by non-equilibrium environment
- Influence of equilibrium and nonequilibrium environments on macroscopic realism through the Leggett-Garg inequalities
- Nonequilibrium-induced enhancement of dynamical quantum coherence and entanglement of spin arrays
- Quantum thermalization and vanishing thermal entanglement in the open Jaynes-Cummings model
- Hierarchical structure of fluctuation theorems for a driven system in contact with multiple heat reservoirs
- A multifunctional quantum thermal device: with and without inner coupling
- Quantum thermalization and thermal entanglement in the open quantum Rabi model
- Entanglement versus Bell nonlocality of quantum nonequilibrium steady states
- Quantum noise theory for phonon transport through nanostructures
- Geometrical bounds on irreversibility in squeezed thermal bath
- The field-induced interaction between non-resonant magnetic dipoles
- Asymmetric steerability of quantum equilibrium and nonequilibrium steady states through entanglement detection
- Magnetic dipole-dipole interaction induced by the electromagnetic field
- Quantum Teleportation in Non-equilibrium Environments and Fixed-point Fidelity
- Quantum Energy Teleportation under Equilibrium and Nonequilibrium Environments
- Quantum geometrical current and coherence of the open gravitation system: loop quantum gravity coupled with a thermal scalar field