Nonmonotonic quantum-to-classical transition in multiparticle interference

Title
Nonmonotonic quantum-to-classical transition in multiparticle interference
Authors
임향택Young-Sik RaMalte C. TichyOsung KwonFlorian MintertAndreas BuchleitnerYoon-Ho Kim
Issue Date
2013-01
Publisher
Proceedings of the National Academy of Sciences of the United States of America
Citation
VOL 110, NO 4-1231
Abstract
Quantum-mechanical wave-particle duality implies that probability distributions for granular detection events exhibit wave-like interference. On the single-particle level, this leads to self-interference-e.g., on transit across a double slit-for photons as well as for large, massive particles, provided that no which-way information is available to any observer, even in principle. When more than one particle enters the game, their specific many-particle quantum features are manifested in correlation functions, provided the particles cannot be distinguished. We are used to believe that interference fades away monotonically with increasing distinguishability-in accord with available experimental evidence on the single- and on the many-particle level. Here, we demonstrate experimentally and theoretically that such monotonicity of the quantum-to-classical transition is the exception rather than the rule whenever more than two particles interfere. As the distinguishability of the particles is continuously increased, different numbers of particles effectively interfere, which leads to interference signals that are, in general, nonmonotonic functions of the distinguishability of the particles. This observation opens perspectives for the experimental characterization of many-particle coherence and sheds light on decoherence processes in many-particle systems.
URI
http://pubs.kist.re.kr/handle/201004/72461
ISSN
0027-8424
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE