Photon Condensation and Enhanced Magnetism in Cavity QED
- 11 October 2021
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 127 (16), 167201
- https://doi.org/10.1103/physrevlett.127.167201
Abstract
A system of magnetic molecules coupled to microwave cavities ( resonators) undergoes the equilibrium superradiant phase transition. The transition is experimentally observable. The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model and then by the modification of the magnetic phase diagram of dipolar crystals, exemplifying the cooperation between intrinsic and photon-induced spin-spin interactions. Finally, a transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
Funding Information
- European Cooperation in Science and Technology (862893 FATMOLS)
- Ministerio de Ciencia e Innovación (MAT2017-88358-C3-1-R, RTI2018-096075-B-C21, PCI2018-093116, EUR2019-103823)
- Gobierno de Aragón (E09-17R Q-MAD)
- Fundación BBVA
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