Effects of Energy Dissipation on the Parametric Excitation of a Coupled Qubit–Cavity System

We consider a parametrically driven system of a qubit coupled to a cavity taking into account different channels of energy dissipation. We focus on the periodic modulation of a single parameter of this hybrid system, which is the coupling constant between the two subsystems. Such a modulation is pos...

Full description

Saved in:
Bibliographic Details
Published in:Journal of low temperature physics 2018-06, Vol.191 (5-6), p.365-372
Main Authors: Remizov, S. V., Zhukov, A. A., Shapiro, D. S., Pogosov, W. V., Lozovik, Yu. E.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Condensed Matter Physics
COUPLING CONSTANTS
Energy dissipation
ENERGY LOSSES
EXCITED STATES
Hybrid systems
Low temperature physics
Magnetic Materials
Magnetism
MODULATION
Parameters
PERIODICITY
PHOTONS
Physics
Physics and Astronomy
QUANTUM STATES
Quantum theory
QUBITS
Qubits (quantum computing)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We consider a parametrically driven system of a qubit coupled to a cavity taking into account different channels of energy dissipation. We focus on the periodic modulation of a single parameter of this hybrid system, which is the coupling constant between the two subsystems. Such a modulation is possible within the superconducting realization of qubit–cavity coupled systems, characterized by an outstanding degree of tunability and flexibility. Our major result is that energy dissipation in the cavity can enhance population of the excited state of the qubit in the steady state, while energy dissipation in the qubit subsystem can enhance the number of photons generated from vacuum. We find optimal parameters for the realization of such dissipation-induced amplification of quantum effects. Our results might be of importance for the full control of quantum states of coupled systems as well as for the storage and engineering of quantum states.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-018-1875-6