Non-Markovian effects on quantum superpositions in a nanostructure

L. Quiroga, F. J. Rodríguez, Neil F Johnson

Research output: Contribution to journalArticle

Abstract

We consider a laser driven nanostructure such a single (SQD) or double quantum dot (DQD) of any shape, which is coupled to photon and phonon baths. These baths provide the basic sources of pure dephasing and relaxation of QD states. We present results which demonstrate that the second order correlation function (g(2)) of emitted photons shows enhanced antibunching features on a time scale, where non-Markov signatures are indeed important for a SQD. This latter feature is only observable when the initial QD state is of a superposition kind thus providing a remarkable sensitivity to state preparation. For a DQD we show that the dipole-dipole interaction is the responsible for superfluorescence at very short times when the driven laser is turned off.

Original languageEnglish (US)
Pages (from-to)95-96
Number of pages2
JournalMicroelectronics Journal
Volume35
Issue number1
DOIs
StatePublished - Jan 2004
Externally publishedYes

Fingerprint

Semiconductor quantum dots
baths
Nanostructures
Photons
Superradiance
quantum dots
dipoles
Lasers
photons
lasers
signatures
preparation
sensitivity
interactions

Keywords

  • Nanostructures
  • Non-Markov effects
  • Quantum dots

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Non-Markovian effects on quantum superpositions in a nanostructure. / Quiroga, L.; Rodríguez, F. J.; Johnson, Neil F.

In: Microelectronics Journal, Vol. 35, No. 1, 01.2004, p. 95-96.

Research output: Contribution to journalArticle

Quiroga, L. ; Rodríguez, F. J. ; Johnson, Neil F. / Non-Markovian effects on quantum superpositions in a nanostructure. In: Microelectronics Journal. 2004 ; Vol. 35, No. 1. pp. 95-96.
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