Temperature effects on quantum non-Markovianity via collision models
arXiv:1804.06522 · doi:10.1103/PhysRevA.97.062104
Abstract
Quantum non-Markovianity represents memory during the system dynamics, which is typically weakened by the temperature. We here study the effects of environmental temperature on the non-Markovianity of an open quantum system by virtue of collision models. The environment is simulated by a chain of ancillary qubits that are prepared in thermal states with a finite temperature . Two distinct non-Markovian mechanisms are considered via two types of collision models, one where the system consecutively interacts with the ancillas and a second where collides only with an intermediate system which in turn interacts with the ancillas. We show that in both models the relation between non-Markovianity and temperature is non-monotonic. In particular, revivals of non-Markovianity may occur as temperature increases. We find that the physical reason behind this behavior can be revealed by examining a peculiar system-environment coherence exchange, leading to ancillary qubit coherence larger than system coherence which triggers information backflow from the environment to the system. These results provide insights on the mechanisms underlying the counterintuitive phenomenon of temperature-enhanced quantum memory effects.
arXiv comment9 pages, 10 figures
References in corpus (59)
- Quantum Computing in the NISQ era and beyond
- Quantifying Coherence
- Quantum Coherence as a Resource
- Measure for the Degree of Non-Markovian Behavior of Quantum Processes in Open Systems
- Non-Markovian dynamics in open quantum systems
- Entanglement and non-Markovianity of quantum evolutions
- Non-Markovian effects on the dynamics of entanglement
- Quantum Metrology in Non-Markovian Environments
- Experimental control of the transition from Markovian to non-Markovian dynamics of open quantum systems
- Measure for the Non-Markovianity of Quantum Processes
- Canonical form of master equations and characterization of non-Markovianity
- On the degree of non-Markovianity of quantum evolution
- Thermalizing Quantum Machines: Dissipation and Entanglement
- Entanglement dynamics of two independent qubits in environments with and without memory
- On measures of non-Markovianity: divisibility vs. backflow of information
- Geometrical characterization of non-Markovianity
- Non-Markovianity assisted Steady State Entanglement
- Optimal state pairs for non-Markovian quantum dynamics
- Collision-model-based approach to non-Markovian quantum dynamics
- Cavity-based architecture to preserve quantum coherence and entanglement
- Experimental on-demand recovery of entanglement by local operations within non-Markovian dynamics
- Comparative study of non-Markovianity measures in exactly solvable one and two qubit models
- Pseudomodes as an effective description of memory: Non-Markovian dynamics of two-state systems in structured reservoirs
- Master equations for correlated quantum channels
- Linear Optics Simulation of Non-Markovian Quantum Dynamics
- Landauer's principle in multipartite open quantum system dynamics
- Collision model for non-Markovian quantum dynamics
- Preserving entanglement and nonlocality in solid-state qubits by dynamical decoupling
- Recovering Entanglement by Local Operations
- Composite quantum collision models
- Experimental observation of weak non-Markovianity
- All (qubit) decoherences: Complete characterization and physical implementation
- Simulation of indivisible qubit channels in collision models
- Non-Markovianity and System-Environment Correlations in a microscopic collision model
- Implications of non-Markovian dynamics for the Landauer bound
- Collision models in quantum optics
- Harnessing non-Markovian quantum memory by environmental coupling
- Quantification of memory effects in the spin-boson model
- Divisibility of quantum dynamical maps and collision models
- Thermodynamic meaning and power of non-Markovianity
- Dynamical role of system-environment correlations in non-Markovian dynamics
- Environmental correlations and Markovian to non-Markovian transitions in collisional models
- Using non-Markovian measures to evaluate quantum master equations for photosynthesis
- Non-Markovianity, coherence and system-environment correlations in a long-range collision model
- Heat flux dynamics in dissipative cascaded systems
- Efficient superdense coding in the presence of non-Markovian noise
- Class of exact memory-kernel master equations
- On the spectral origin of non-Markovianity: an exact finite model
- Interaction-induced correlations and non-Markovianity of quantum dynamics
- A quantum non-Markovian collision model: incoherent swap case
- Non-Markovianity in a collision model with environmental block
- Coarse graining a non-Markovian collisional model
- High Resolution non-Markovianity in NMR
- Relaxation due to random collisions with a many-qudit environment
- Quantum non-Markovian piecewise dynamics from collision models
- Reversible and irreversible dynamics of a qubit interacting with a small environment
- Entanglement dynamics and relaxation in a few qubit system interacting with random collisions
- Structural change in multipartite entanglement sharing: a random matrix approach
- Negativity of quantumness and non-Markovianity in a qubit coupled to a thermal Ising spin bath system
Cited by in corpus (21)
- Quantum collision models: open system dynamics from repeated interactions
- Collision models can efficiently simulate any multipartite Markovian quantum dynamics
- System-environment correlations and Markovian embedding of quantum non-Markovian dynamics
- Collision models in open system dynamics: A versatile tool for deeper insights?
- Experimental progress on quantum coherence: detection, quantification, and manipulation
- Entropy production and asymptotic factorization via thermalization: a collisional model approach
- Validity of Landauer principle and quantum memory effects via collision models
- Battery charging in collision models with Bayesian risk strategies
- Imperfect Thermalizations Allow for Optimal Thermodynamic Processes
- Memory kernel and divisibility of Gaussian Collisional Models
- Coherence as a measure for non-Markovianity and its applications to color centers in diamond
- Correlations break homogenization
- Dissipation induced information scrambling in a collision model
- Entanglement dynamics of an open moving-biparticle system driven by classical-field
- Effect of inter-system coupling on heat transport in a microscopic collision model
- The time crystal phase emerges from the qubit network under unitary random operations
- Engineering non-Markovianity from defect-phonon interactions
- Tunable non-Markovian dynamics in a collision model: an application to coherent transport
- Heating and cooling processes via phaseonium-driven dynamics of cascade systems
- Time evolution of quantum correlations in presence of state dependent bath
- Hierarchical-environment-assisted non-Markovian and its effect on thermodynamic properties