NDLI: Quantum interference of photons in simple networks

Content Provider	Springer Nature Link
Author	Suda, M. Pacher, C. Peev, M. Dušek, M. Hipp, F.
Copyright Year	2012
Abstract	A theoretical investigation of quantum interference of photonic multistates in simple devices like beam splitters, Mach–Zehnder interferometers and double-loop devices are presented. Variable transmission and reflection coefficients as well as variable phase shifts are included in order to calculate quantum states and mean photon numbers at the outputs. Various input states like Fock states and coherent states and a combination of both are considered as well as squeezed states. Two methods are applied: The direct matrix method and the method of unitary representation. Remarkable results appear in a double-loop interferometer where for special phase shifts equal mean photon numbers in the three output ports are obtained provided certain input states are given. A computerized simulation of general networks using various input Fock states is presented. Multistate devices will be used in future linear quantum computation and quantum information processing schemes.
Starting Page	1915
Ending Page	1945
Page Count	31
File Format	PDF
ISSN	15700755
Journal	Quantum Information Processing
Volume Number	12
Issue Number	5
e-ISSN	15731332
Language	English
Publisher	Springer US
Publisher Date	2012-11-07
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fock state Coherent state Mach–Zehnder Entanglement Quantum interference Double-loop interferometer Unitary operation Squeezed states Twin beam state Quantum Information Technology, Spintronics Quantum Computing Data Structures, Cryptology and Information Theory Quantum Physics Mathematical Physics
Content Type	Text
Resource Type	Article
Subject	Statistical and Nonlinear Physics Theoretical Computer Science Signal Processing Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Modeling and Simulation

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