# Two-photon phase gate with linear optical elements and atom–cavity system

Two-photon phase gate with linear optical elements and atom–cavity system We propose a protocol for implementing $$\pi$$ π phase gate of two photons with linear optical elements and an atom–cavity system. The evolution of the atom–cavity system is based on the quantum Zeno dynamics. The devices in the present protocol are simple and feasible with current experimental technology. Moreover, the method we proposed here is deterministic with a high fidelity. Numerical simulation shows that the evolution in cavity is efficient and robust. Therefore, the protocol may be helpful for quantum computation field. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

# Two-photon phase gate with linear optical elements and atom–cavity system

, Volume 15 (11) – Sep 1, 2016
15 pages

/lp/springer_journal/two-photon-phase-gate-with-linear-optical-elements-and-atom-cavity-nQkRW1K4GG
Publisher
Springer Journals
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-016-1429-2
Publisher site
See Article on Publisher Site

### Abstract

We propose a protocol for implementing $$\pi$$ π phase gate of two photons with linear optical elements and an atom–cavity system. The evolution of the atom–cavity system is based on the quantum Zeno dynamics. The devices in the present protocol are simple and feasible with current experimental technology. Moreover, the method we proposed here is deterministic with a high fidelity. Numerical simulation shows that the evolution in cavity is efficient and robust. Therefore, the protocol may be helpful for quantum computation field.

### Journal

Quantum Information ProcessingSpringer Journals

Published: Sep 1, 2016

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