Cooling with fermionic reservoir
arXiv:2207.08862 · doi:10.1103/PhysRevE.107.034128
Abstract
Recently, much emphasis has been given to genuinely quantum reservoirs generically called fermionic reservoirs. These reservoirs are characterized by having finite levels, as opposed to bosonic reservoirs, which have infinite levels that can be populated via an increase in temperature. Given this, some studies are being carried out to explore the advantages of using quantum reservoirs, in particular in the operation of heat machines. In this work, we make a comparative study of a thermal refrigerator operating in the presence of either a bosonic or a fermionic reservoir, and we show that fermionic reservoirs have advantages over bosonic ones. We propose an explanation for the origin of these advantages by analyzing both the asymptotic behavior of the states of the qubits and the exchange rates between these qubits and their respective reservoirs.
arXiv comment5 pages, 2 figures
References in corpus (23)
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- A single-atom heat engine
- Single ion heat engine with maximum efficiency at maximum power
- How small can thermal machines be? The smallest possible refrigerator
- Negative Absolute Temperature for Motional Degrees of Freedom
- Coherence effects in the performance of the quantum Otto heat engine
- Efficiency of a quantum Otto heat engine operating under a reservoir at effective negative temperatures
- First and Second Law of Quantum Thermodynamics: A Consistent Derivation Based on a Microscopic Definition of Entropy
- Performance comparison of dynamical decoupling sequences for a qubit in a rapidly fluctuating spin-bath
- Single atom energy-conversion device with a quantum load
- Quantum Otto cycle with inner friction: finite-time and disorder effects
- Maximum power and corresponding efficiency for two-level heat engines and refrigerators: optimality of fast cycles
- Efficient simulation of open quantum systems coupled to a fermionic bath
- Universal two-level quantum Otto machine under a squeezed reservoir
- Achieve Higher Efficiency at Maximum Power with Finite-time Quantum Otto Cycle
- Unified trade-off optimization of a three-level quantum refrigerator
- Reservoir engineering with arbitrary temperatures for spin systems and quantum thermal machine with maximum efficiency
- Enhancing the performance of coupled quantum Otto thermal machines without entanglement and quantum correlations
- Quantum refrigerators in finite-time cycle duration
- Feasible platform to study negative temperatures
- Non-Markovian dynamics of a two-level system in a bosonic bath and a Gaussian fluctuating environment with finite correlation time
- Quantum Otto Thermal Machines Powered by Kerr Nonlinearity
Cited by in corpus (6)
- Reservoir-assisted quantum battery charging at finite temperatures
- A quantum Otto-type heat engine with fixed frequency
- Transient effects in quantum refrigerators with finite environments
- Optimally Fast Qubit Reset
- Quantum refrigerator embedded in spin-star environments: Scalings of temperature and refrigeration time
- Nonadiabatic evolution and thermodynamics for a boundary-driven system with a weak intrasubsystem interaction