Work

Dynamical Casimir Effect in a Superconducting Coplanar Waveguide

Year: 2009

Type: article

Abstract: We investigate the dynamical Casimir effect in a coplanar waveguide (CPW) terminated by a superconducting quantum interference device (SQUID). Changing the magnetic flux through the SQUID parametrically modulates the boundary condition of the CPW, and thereby, its effective length. Effective boundary velocities comparable to the speed of light in the CPW result in broadband photon generation which is identical to the one calculated in the dynamical Casimir effect for a single oscillating mirror. We estimate the power of the radiation for realistic parameters and show that it is experimentally feasible to directly detect this nonclassical broadband radiation.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.103.147003

Authors: J. R. Johansson, G. Johansson, C. M. Wilson, Franco Nori

Institutions: RIKEN, Chalmers University of Technology, University of Michigan

Language: English

Topic: Quantum Electrodynamics and Casimir Effect

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Army Research Office

Award: Quantum -QuBIC: "Quantum Computing with Superconducting Qubits"