Quantum statistics have a profound impact on the properties of systems composed of identical particles. At the most elementary level, Bose and Fermi quantum statistics differ in the exchange phase, either 0 or π, which the wave function acquires when two identical particles are exchanged. In this Letter, we demonstrate that the exchange phase can be directly probed with a pair of massive particles by physically exchanging their positions. We present two protocols where the particles always remain spatially well separated, thus ensuring that the exchange contribution to their interaction energy is negligible and that the detected signal can only be attributed to the exchange symmetry of the wave function. We discuss possible implementations with a pair of trapped atoms or ions.

Revealing Quantum Statistics with a Pair of Distant Atoms / Roos, C. F.; Alberti, A.; Meschede, D.; Hauke, P.; Häffner, H.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 119:16(2017), pp. 160401.1-160401.7. [10.1103/PhysRevLett.119.160401]

Revealing Quantum Statistics with a Pair of Distant Atoms

Hauke P.;
2017-01-01

Abstract

Quantum statistics have a profound impact on the properties of systems composed of identical particles. At the most elementary level, Bose and Fermi quantum statistics differ in the exchange phase, either 0 or π, which the wave function acquires when two identical particles are exchanged. In this Letter, we demonstrate that the exchange phase can be directly probed with a pair of massive particles by physically exchanging their positions. We present two protocols where the particles always remain spatially well separated, thus ensuring that the exchange contribution to their interaction energy is negligible and that the detected signal can only be attributed to the exchange symmetry of the wave function. We discuss possible implementations with a pair of trapped atoms or ions.
2017
16
Roos, C. F.; Alberti, A.; Meschede, D.; Hauke, P.; Häffner, H.
Revealing Quantum Statistics with a Pair of Distant Atoms / Roos, C. F.; Alberti, A.; Meschede, D.; Hauke, P.; Häffner, H.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 119:16(2017), pp. 160401.1-160401.7. [10.1103/PhysRevLett.119.160401]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/256321
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