Cooling a quantum circuit via coupling to a multiqubit system
arXiv:1004.3126 · doi:10.1103/PhysRevA.81.043411
Abstract
The cooling effects of a quantum LC circuit coupled inductively with an ensemble of artificial qubits are investigated. The particles may decay independently or collectively through their interaction with the environmental vacuum electromagnetic field reservoir. For appropriate bath temperatures and the resonator's quality factors, we demonstrate an effective cooling well below the thermal background. In particular, we found that for larger samples the cooling efficiency is better for independent qubits. However, the cooling process can be faster for collectively interacting particles.
5 pages, 3 figures
References in corpus (17)
- Resolved Sideband Cooling of a Micromechanical Oscillator
- Cooling a nanomechanical resonator with quantum back-action
- Feedback cooling of a cantilever's fundamental mode below 5 mK
- Single artificial-atom lasing
- Spectroscopy on two coupled flux qubits
- Controllable coupling of superconducting flux qubits
- Microwave-Induced Cooling of a Superconducting Qubit
- Single-qubit lasing and cooling at the Rabi frequency
- Cooling carbon nanotubes to the phononic ground state with constant electron current
- Simultaneous cooling of an artificial atom and its neighboring quantum system
- Prospects for cooling nanomechanical motion by coupling to a superconducting microwave resonator
- Ground state cooling of a nanomechanical resonator via a Cooper pair box qubit
- Dissipation in circuit quantum electrodynamics: lasing and cooling of a low-frequency oscillator
- Cooling a mechanical resonator via coupling to a tunable double quantum dot
- Engineering Superposition States and Tailored Probes for Nano-resonators Via Open-Loop Control
- Robust creation of entangled states of two coupled flux qubits via dynamic control of the transition frequencies
- Two-photon cooling of a nonlinear quantum oscillator
Cited by in corpus (5)
- Quantum refrigerator driven by current noise
- Dissipative dynamics of a two-qubit system: Four-level lasing
- Tailoring the thermalization time of a cavity-field using distinct atomic reservoirs
- Cooling a two-level emitter in photonic crystal environments
- Entanglement versus cooling in the system of a driven pair of two-level qubits longitudinally coupled with a boson mode field