Research

Extracting quantum work statistics and fluctuation theorems by single qubit interferometry


Reference:

Dorner, R., Clark, S. R., Heaney, L., Fazio, R., Goold, J. and Vedral, V., 2013. Extracting quantum work statistics and fluctuation theorems by single qubit interferometry. Physical Review Letters, 110 (23), 230601.

Related documents:

[img]
Preview
PDF (Published Version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (337kB) | Preview

    Official URL:

    http://dx.doi.org/10.1103/PhysRevLett.110.230601

    Abstract

    We propose an experimental scheme to verify the quantum non-equilibrium fluctuation relations using current technology. Specifically, we show that the characteristic function of the work distribution for a non-equilibrium quench of a general quantum system can be extracted from Ramsey interferometry of a single probe qubit. Our scheme paves the way for the full characterisation of non-equilibrium processes in a variety of complex quantum systems ranging from single particles to many-body atomic systems and spin chains. We demonstrate our idea using a time-dependent quench of the motional state of a trapped ion, where the internal pseudo-spin provides a convenient probe qubit.

    Details

    Item Type Articles
    CreatorsDorner, R., Clark, S. R., Heaney, L., Fazio, R., Goold, J. and Vedral, V.
    DOI10.1103/PhysRevLett.110.230601
    Uncontrolled Keywordsquant-ph,cond-mat.mes-hall,cond-mat.stat-mech
    DepartmentsFaculty of Science > Physics
    RefereedYes
    StatusPublished
    ID Code47353
    Additional Information4.5 pages. 2 Figures. See related paper "Measuring the characteristic function of the work distribution" by L. Mazzola et al. This version - additional analysis undertaken

    Export

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...