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Wave-particle duality of many-body quantum states
- Source :
- Phys. Rev. X 11, 031041 (2021)
- Publication Year :
- 2019
-
Abstract
- We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wave- and particle-like properties balance each other. Much as in the well-understood single-particle case, which-way information -- here on the level of many-particle paths -- lends particle-character, while interference -- here due to coherent superpositions of many-particle amplitudes -- indicates wave-like properties. We analyze how many-particle which-way information, continuously tunable by the level of distinguishability of fermionic or bosonic, identical and possibly interacting particles, constrains interference contributions to many-particle observables and thus controls the quantum-to-classical transition in many-particle quantum systems. The versatility of our theoretical framework is illustrated for Hong-Ou-Mandel- and Bose-Hubbard-like exemplary settings.
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. X 11, 031041 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.1901.02810
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevX.11.031041