Revealing Bosonic Exchange Symmetry in Two-Photon Temporal Wavefunction
- URL: http://arxiv.org/abs/2507.04134v1
- Date: Sat, 05 Jul 2025 19:08:46 GMT
- Title: Revealing Bosonic Exchange Symmetry in Two-Photon Temporal Wavefunction
- Authors: Yefeng Mei, Yue Jiang, Shengwang Du,
- Abstract summary: We report the direct experimental observation of bosonic exchange symmetry in the temporal wavefunction of photon pairs generated via spontaneous four-wave mixing.<n>The measured two-photon temporal correlations show excellent agreement with theoretical predictions based on symmetrized bosonic wavefunctions.<n>Both the amplitude and phase profiles exhibit clear symmetry under photon exchange, providing a direct confirmation of bosonic exchange symmetry in the time domain.
- Score: 6.792369821047859
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The wavefunction of two identical bosons remains invariant under particle exchange - a fundamental quantum symmetry that underlies Bose-Einstein statistics. We report the direct experimental observation of bosonic exchange symmetry in the temporal wavefunction of photon pairs generated via spontaneous four-wave mixing in a three-level cold atomic ensemble. The measured two-photon temporal correlations show excellent agreement with theoretical predictions based on symmetrized bosonic wavefunctions. In addition, we perform time-resolved two-photon interference to reconstruct the complex temporal wavefunction. Both the amplitude and phase profiles exhibit clear symmetry under photon exchange, providing a direct confirmation of bosonic exchange symmetry in the time domain.
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