| Issue |
EPL
Volume 122, Number 5, June 2018
|
|
|---|---|---|
| Article Number | 50007 | |
| Number of page(s) | 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/122/50007 | |
| Published online | 19 July 2018 | |
Quantum-to-classical transition measure of large molecule diffraction
1 Departamento de Física, Universidade Federal do Piauí, Campus Ministro Petrônio Portela CEP 64049-550, Teresina, PI, Brazil
2 Departamento de Física, Instituto de Ciências Exatas, Universidade Federal do ABC Av. dos Estados, 5001 - Bangú, Santo André, 09210-580, SP, Brazil
Received: 9 May 2018
Accepted: 29 June 2018
We study the quantum-to-classical transition induced by the loss of coherence in the double-slit experiment with large molecules. We introduce the effects of loss of coherence by considering a propagator that includes such effects. We calculate the fringe visibility and the volume of the negative part of the Wigner function and observe that these quantities decrease when the effects of loss of coherence increase.
PACS: 03.65.Yz – Decoherence; open systems; quantum statistical methods / 03.65.Ta – Foundations of quantum mechanics; measurement theory
© EPLA, 2018
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