Literature DB >> 17358521

Keeping a quantum bit alive by optimized pi-pulse sequences.

Götz S Uhrig1.   

Abstract

A general strategy to maintain the coherence of a quantum bit is proposed. The analytical result is derived rigorously including all memory and backaction effects. It is based on an optimized pi-pulse sequence for dynamic decoupling extending the Carr-Purcell-Meiboom-Gill cycle. The optimized sequence is very efficient, in particular, for strong couplings to the environment.

Entities:  

Year:  2007        PMID： 17358521     DOI： 10.1103/PhysRevLett.98.100504

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  33 in total

1.  Shift-driven modulations of spin-echo signals.

Authors:  Pieter E S Smith; Guy Bensky; Gonzalo A Alvarez; Gershon Kurizki; Lucio Frydman
Journal:  Proc Natl Acad Sci U S A       Date:  2012-04-02       Impact factor: 11.205

2.  Optimized dynamical decoupling in a model quantum memory.

Authors:  Michael J Biercuk; Hermann Uys; Aaron P VanDevender; Nobuyasu Shiga; Wayne M Itano; John J Bollinger
Journal:  Nature       Date:  2009-04-23       Impact factor: 49.962

3.  Composite pulses for robust universal control of singlet-triplet qubits.

Authors:  Xin Wang; Lev S Bishop; J P Kestner; Edwin Barnes; Kai Sun; S Das Sarma
Journal:  Nat Commun       Date:  2012       Impact factor: 14.919

4.  Optimized, unequal pulse spacing in multiple echo sequences improves refocusing in magnetic resonance.

Authors:  Elizabeth R Jenista; Ashley M Stokes; Rosa Tamara Branca; Warren S Warren
Journal:  J Chem Phys       Date:  2009-11-28       Impact factor: 3.488

5.  Preserving electron spin coherence in solids by optimal dynamical decoupling.

Authors:  Jiangfeng Du; Xing Rong; Nan Zhao; Ya Wang; Jiahui Yang; R B Liu
Journal:  Nature       Date:  2009-10-29       Impact factor: 49.962

6.  Quantum information: Caught at the finishing line.

Authors:  Bob B Buckley; David D Awschalom
Journal:  Nature       Date:  2009-10-29       Impact factor: 49.962

7.  Atomic-scale magnetometry of distant nuclear spin clusters via nitrogen-vacancy spin in diamond.

Authors:  Nan Zhao; Jian-Liang Hu; Sai-Wah Ho; Jones T K Wan; R B Liu
Journal:  Nat Nanotechnol       Date:  2011-02-27       Impact factor: 39.213

8.  Quantum computers.

Authors:  T D Ladd; F Jelezko; R Laflamme; Y Nakamura; C Monroe; J L O'Brien
Journal:  Nature       Date:  2010-03-04       Impact factor: 49.962

9.  Gate fidelity and coherence of an electron spin in an Si/SiGe quantum dot with micromagnet.

Authors:  Erika Kawakami; Thibaut Jullien; Pasquale Scarlino; Daniel R Ward; Donald E Savage; Max G Lagally; Viatcheslav V Dobrovitski; Mark Friesen; Susan N Coppersmith; Mark A Eriksson; Lieven M K Vandersypen
Journal:  Proc Natl Acad Sci U S A       Date:  2016-10-03       Impact factor: 11.205

10.  Multispin correlations and pseudo-thermalization of the transient density matrix in solid-state NMR: free induction decay and magic echo.

Authors:  Steven W Morgan; Vadim Oganesyan; Gregory S Boutis
Journal:  Phys Rev B Condens Matter Mater Phys       Date:  2012-12-14
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