Some implications of superconducting quantum interference to the application of master equations in engineering quantum technologies
S. N. A. Duffus, K. N. Bjergstrom, V. M. Dwyer, J. H. Samson, T. P. Spiller, A. M. Zagoskin, W. J. Munro, Kae Nemoto, M. J. Everitt
DOI 10.1103/PhysRevB.94.064518 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
In this paper we consider the modeling and simulation of open quantum systems from a device engineering perspective. We derive master equations at different levels of approximation for a superconducting quantum interference device (SQUID) ring coupled to an ohmic bath. We demonstrate that the master equations we consider produce decoherences that are qualitatively and quantitatively dependent on both the level of approximation and the ring's external flux bias. We discuss the issues raised when seeking to obtain Lindbladian dissipation and show, in this case, that the external flux (which may be considered to be a control variable in some applications) is not confined to the Hamiltonian, as often assumed in quantum control, but also appears in the Lindblad terms.
Similar papers
Superconducting analogs of quantum optical phenomena: Macroscopic quantum superpositions and squeezing in a superconducting quantum-interference device ring
similarity 0.92M. J. Everitt et al.
Source status unknown — claims are unverified
Some implications of superconducting quantum interference to the application of master equations in engineering quantum technologies
similarity 0.90S. N. A. Duffus et al. · 2016 · arXiv:1605.06268
Source status unknown — claims are unverified
Fully quantum-mechanical model of a SQUID ring coupled to an electromagnetic field
similarity 0.89M. J. Everitt et al.
Source status unknown — claims are unverified
Lindblad master equation approach to the dissipative quench dynamics of planar superconductors
similarity 0.89Andrea Nava et al.
Source status unknown — claims are unverified
Controlled creation of maximally entangled states using a SQUID ring coupled to an electromagnetic field
similarity 0.88M. J. Everitt et al. · 2003 · arXiv:quant-ph/0307181
Source status unknown — claims are unverified
Quantum statistics and entanglement of two electromagnetic field modes coupled via a mesoscopic SQUID ring
similarity 0.88M. J. Everitt et al.
Source status unknown — claims are unverified