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Analogue Black Holes in Reactive Molecules |
| Ren Zhang1†, Chenwei Lv2†, and Qi Zhou2,3* |
1School of Physics, Xi'an Jiaotong University, Xi'an 710049, China
2Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA
3Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN, 47907, USA
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Ren Zhang, Chenwei Lv, and Qi Zhou 2023 Chin. Phys. Lett. 40 050401 |
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Abstract We show that reactive molecules with a unit probability of reaction naturally provide a simulator of some intriguing black hole physics. The unit reaction at the short distance acts as an event horizon and delivers a one-way traffic for matter waves passing through the potential barrier when two molecules interact by high partial-wave scatterings or dipole-dipole interactions. In particular, the scattering rate as a function of the incident energy exhibits a thermal-like distribution near the maximum of the interaction energy in the same manner as a scalar field scatters with the potential barrier outside the event horizon of a black hole. Such a thermal-like scattering can be extracted from the temperature-dependent two-body loss rate measured in experiments on KRb and other molecules.
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Received: 27 January 2023
Published: 25 April 2023
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