Initial conditions and entanglement sudden death

Xiao Feng Qian, J. H. Eberly

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We report results bearing on the behavior of non-local decoherence and its potential for being managed or even controlled. The decoherence process known as entanglement sudden death (ESD) can drive prepared entanglement to zero at the same time that local coherences and fidelity remain non-zero. For a generic ESD-susceptible Bell superposition state, we provide rules restricting the occurrence and timing of ESD, amounting to management tools over a continuous variation of initial conditions. These depend on only three parameters: initial purity, entanglement and excitation. Knowledge or control of initial phases is not needed.

Original languageEnglish
Pages (from-to)2931-2934
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume376
Issue number45
DOIs
StatePublished - 1 Oct 2012

Keywords

  • Entanglement dynamics
  • Entanglement sudden death control

Fingerprint

Dive into the research topics of 'Initial conditions and entanglement sudden death'. Together they form a unique fingerprint.

Cite this