Conditional quantum-state engineering using ancillary squeezed-vacuum states

Jeong, Hyunseok, Lance, Andrew M., Grosse, Nicolai B., Symul, Thomas, Lam, Ping Koy and Ralph, Timothy C. (2006) Conditional quantum-state engineering using ancillary squeezed-vacuum states. Physical Review A, 74 3: 033813-1-033813-10. doi:10.1103/PhysRevA.74.033813

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Author Jeong, Hyunseok
Lance, Andrew M.
Grosse, Nicolai B.
Symul, Thomas
Lam, Ping Koy
Ralph, Timothy C.
Title Conditional quantum-state engineering using ancillary squeezed-vacuum states
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2006-01-01
Year available 2006
Sub-type Article (original research)
DOI 10.1103/PhysRevA.74.033813
Open Access Status File (Publisher version)
Volume 74
Issue 3
Start page 033813-1
End page 033813-10
Total pages 10
Editor B. Crasemann
Place of publication United States
Publisher American Physical Society
Language eng
Subject C1
240301 Atomic and Molecular Physics
780102 Physical sciences
02 Physical Sciences
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract We investigate an optical scheme to conditionally engineer quantum states using a beam splitter, homodyne detection, and a squeezed vacuum as an ancillar state. This scheme is efficient in producing non-Gaussian quantum states such as squeezed single photons and superpositions of coherent states (SCSs). We show that a SCS with well defined parity and high fidelity can be generated from a Fock state of n <= 4, and conjecture that this can be generalized for an arbitrary n Fock state. We describe our experimental demonstration of this scheme using coherent input states and measuring experimental fidelities that are only achievable using quantum resources.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Q-Index Code C1
Institutional Status UQ

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Created: Wed, 15 Aug 2007, 18:33:27 EST