Proposal for detection of a single electron spin in a microwave resonator

Autor:	Haikka, P., Kubo, Y., Bienfait, A., Bertet, P., Moelmer, K.
Rok vydání:	2016
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. A 95, 022306 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.95.022306
Popis:	We propose a method for detecting the presence of a single spin in a crystal by coupling it to a high-quality factor superconducting planar resonator. By confining the microwave field in a constriction of nanometric dimensions, the coupling constant can be as high as $5-10$\,kHz. This coupling affects the amplitude of the field emitted by the resonator, and the integrated homodyne signal allows detection of a single spin with unit signal-to-noise ratio within few milliseconds. We further show that a stochastic master equation approach and a Bayesian analysis of the full time dependent homodyne signal improves this figure by $\sim 30\%$ for typical parameters. Comment: 11 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1609.01132 Zobrazit plný text záznamu View this record from Arxiv