Coherent oscillations in a superconducting multi-level quantum system

Preprint

12 October 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0405430

Abstract

We have observed coherent time evolution of states in a multi-level quantum system, formed by a current-biased dc SQUID. The manipulation of the quantum states is achieved by resonant microwave pulses of flux. The number of quantum states participating in the coherent oscillations increases with increasing microwave power. Quantum measurement is performed by a nanosecond flux pulse which projects the final state onto one of two different voltage states of the dc SQUID, which can be read out.

Keywords

COHERENT OSCILLATIONS
SUPERCONDUCTING MULTI
LEVEL QUANTUM SYSTEM
MULTI LEVEL QUANTUM
MICROWAVE PULSES
QUANTUM SYSTEM
SQUID

All Related Versions

Version 1, 2004-05-19, ArXiv
Version 2, 2004-10-12, ArXiv
Published version: Physical Review Letters, 93 (18), 187003.

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