Quantum state conversion by cross-Kerr interaction

Abstract

A generalized Mach-Zehnder-type interferometer equipped with cross-Kerr elements is proposed to convert N-photon truncated single-mode quantum states into (N+1)-mode single-photon states, which are suitable for further state manipulation by means of beam splitter arrays and ON/OFF-detections, and vice versa. Applications to the realization of unitary and non-unitary transformations, quantum state reconstruction, and quantum telemanipulation are studied.

22 pages, 4 figures, using a4.sty

References in corpus (3)

• Optimum unambiguous discrimination among linearly-independent non-orthogonal quantum states and its optical realization
• Coupled cavities for enhancing the cross-phase modulation in electromagnetically induced transparency
• Quantum Zeno phenomena: pulsed versus continuous measurement

Cited by in corpus (6)

• Review article: Linear optical quantum computing
• Machine learning method for state preparation and gate synthesis on photonic quantum computers
• Two photons co- and counter-propagating through $N$ cross-Kerr sites
• Linear optics substituting scheme for multi-mode operations
• Deciding finiteness of bosonic dynamics with tunable interactions
• Entanglement purification of multi-mode quantum states