Quantum gates and multipartite entanglement resonances realized by nonuniform cavity motion
Abstract
We demonstrate the presence of genuine multipartite entanglement between the modes of quantum fields in nonuniformly moving cavities. The transformations generated by the cavity motion can be considered as multipartite quantum gates. We present two setups for which multimode entanglement can be generated for bosons and fermions. As a highlight we show that the genuine bosonic multipartite correlations can be resonantly enhanced. Our results provide fundamental insights into the structure of Bogoliubov transformations and suggest strong links between quantum information, quantum fields in curved spacetimes and gravitational analogues by way of the equivalence principle.
- Publication:
-
Physical Review D
- Pub Date:
- November 2012
- DOI:
- 10.1103/PhysRevD.86.105003
- arXiv:
- arXiv:1207.1827
- Bibcode:
- 2012PhRvD..86j5003F
- Keywords:
-
- 03.67.Bg;
- 03.65.Yz;
- 04.62.+v;
- Entanglement production and manipulation;
- Decoherence;
- open systems;
- quantum statistical methods;
- Quantum field theory in curved spacetime;
- Quantum Physics;
- General Relativity and Quantum Cosmology
- E-Print:
- v2: extended to 9 pages, 2 figures, appendix with explicit witness inequalities added