Quantum Otto Thermal Machines Powered by Kerr Nonlinearity
arXiv:2105.09475 · doi:10.1088/1361-6455/ac291a
Abstract
We study the effect of Kerr nonlinearity in quantum thermal machines having a Kerr-nonlinear oscillator as working substance and operating under the ideal quantum Otto cycle. We first investigate the efficiency of a Kerr-nonlinear heat engine and show that by varying the Kerr-nonlinear strength the efficiency surpasses in up to 2.5 times the efficiency of a quantum harmonic oscillator Otto engine. Moreover, the Kerr-nonlinearity makes the coefficient of performance of the Kerr-nonlinear refrigerator to be as large as 3 times the performance of quantum harmonic oscillator Otto refrigerators. These results were obtained using realistic parameters from circuit quantum electrodynamics devices formed by superconducting circuits and operating in the microwave regime.
arXiv comment6 pages, 5 figures
References in corpus (29)
- Charge insensitive qubit design derived from the Cooper pair box
- Circuit Quantum Electrodynamics
- Shortcuts to adiabaticity: concepts, methods, and applications
- Quantum Thermodynamic Cycles and quantum heat engines
- A nano heat engine beyond the Carnot limit
- Shortcuts to adiabaticity by counter-diabatic driving
- The Kerr-Cat Qubit: Stabilization, Readout, and Gates
- The quantum harmonic Otto cycle
- An improved Landauer Principle with finite-size corrections
- Performance of discrete heat engines and heat pumps in finite time
- Classical and quantum shortcuts to adiabaticity for scale-invariant driving
- Entropy production and thermodynamic power of the squeezed thermal reservoir
- Squeezed thermal reservoirs as a resource for a nano-mechanical engine beyond the Carnot limit
- Efficiency of a quantum Otto heat engine operating under a reservoir at effective negative temperatures
- Scaling-up quantum heat engines efficiently via shortcuts to adiabaticity
- Equivalence between an optomechanical system and a Kerr medium
- Superadiabatic quantum friction suppression in finite-time thermodynamics
- Performance of shortcut-to-adiabaticity quantum engines
- Scaling approach to quantum non-equilibrium dynamics of many-body systems
- Optimal performance of a quantum Otto refrigerator
- Work extraction in the spin-boson model
- Thermodynamics as a Consequence of Information Conservation
- Shortcut-to-adiabaticity quantum Otto refrigerator
- Universal two-level quantum Otto machine under a squeezed reservoir
- Effects of coherence on quantum speed limits and shortcuts to adiabaticity in many-particle systems
- Engineering Framework for Optimizing Superconducting Qubit Designs
- Reservoir engineering with arbitrary temperatures for spin systems and quantum thermal machine with maximum efficiency
- Two-level quantum Otto heat engine operating with unit efficiency far from the quasi-static regime under a squeezed reservoir
- A Nonlinear Charge- and Flux-Tunable Cavity Derived from an Embedded Cooper Pair Transistor