QED in a time-dependent double cavity and creation of entanglement between noninteracting atoms via quantum eraser technique
- INFM and Dipartimento Scienze Fisiche ed Astronomiche via Archirafi 36, 90123 Palermo (Italy) (Italy)
We discuss two striking features of quantum mechanics: The concepts of vacuum and of entanglement. We first study the radiation field inside a double cavity (a cavity which contains a reflecting mirror). If the mirror is rapidly removed, peculiar quantum phenomena, such as photon creation from vacuum and squeezing, occur. We discuss then a gedanken experiment which employs the double cavity to create entanglement between two atoms. The atoms cross the double cavity and interact with its two independent radiation fields. After the atoms leave the cavity, the mirror is suddenly removed. Measurement of the radiation field inside the cavity can give rise to entanglement between the atoms. The method can be extended to an arbitrary number of atoms, providing thus an N-particle GHZ state.
- OSTI ID:
- 21205257
- Journal Information:
- AIP Conference Proceedings, Vol. 461, Issue 1; Conference: International workshop on mysteries, puzzles and paradoxes in quantum mechanics, Lake Garda (Italy), 30 Aug - 5 Sep 1998; Other Information: DOI: 10.1063/1.57859; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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