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Entangled photons from the polariton vacuum in a switchable optical cavity
| Content Provider | Semantic Scholar |
|---|---|
| Author | Auer, Adrian Burkard, G. |
| Copyright Year | 2012 |
| Abstract | We study theoretically the entanglement of two-photon states in the ground state of the intersubband cavity system, i.e., the so-called polariton vacuum. The system consists of a sequence of doped quantum wells located inside a microcavity and the photons can interact with intersubband excitations inside the quantum wells. Using an explicit solution for the ground state of the system, operated in the ultrastrong-coupling regime, a postselection is introduced, where only certain two-photon states are considered and analyzed for mode entanglement. We find that a fast quench of the coupling creates entangled photons and that the degree of entanglement depends on the absolute values of the in-plane wave vectors of the photons. Maximally entangled states can be generated by choosing the appropriate modes in the postselection. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://theorie.physik.uni-konstanz.de/burkard/sites/default/files/images/PhysRevB.85.235140.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Body cavities Choose (action) Doping (semiconductor) Ground state Photons Polariton Postselection Quantum entanglement Quantum well Water Wells |
| Content Type | Text |
| Resource Type | Article |
