Journal Article

FZJ-2015-04041

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Frequency-modulated pulses for quantum bits coupled to time-dependent baths

Fauseweh, B. (Corresponding Author) ; Pasini, S.FZJ* ; Uhrig, G. S.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/8791  doi:10.1103/PhysRevA.85.022310

Abstract: We consider the coherent control of a quantum bit by the use of short pulses with finite duration τp. By shaping the pulse, we perturbatively decouple the dynamics of the bath from the dynamics of the quantum bit during the pulse. Such shaped pulses provide single quantum bit gates robust against decoherence which are useful for quantum-information processing. We extend previous results in two ways: (i) we treat frequency-modulated pulses and (ii) we pass from time-independent baths to analytically time-dependent baths. First- and second-order solutions for π and π/2 pulses are presented. They are useful in experiments where amplitude modulation is difficult to realize

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Contributing Institute(s):

1. Neutronenstreuung (ICS-1)
2. Neutronenstreuung (Neutronenstreuung ; JCNS-1)

Research Program(s):

1. 451 - Soft Matter Composites (POF2-451) (POF2-451)
2. 54G - JCNS (POF2-54G24) (POF2-54G24)

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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