NDLI: Perfect quantum information processing with Dicke-class state

Content Provider	Springer Nature Link
Author	Peng, Z. H. Zou, J. Liu, X. J.
Copyright Year	2010
Abstract	We investigate the possibility of implementing perfect quantum information processing with Dicke-class state. It is shown that the symmetric Dicke state \|DN (m)〉 only has the maximal bipartite entanglement of one ebit when N = 2m and generally it is not maximally entangled for all bipartitions. By adjusting the suitable weights and relative phases in the Dicke state \|DN (m)〉, we present a class of asymmetric Dicke states $\|\overline D_N^{(m)}\rangle$ which have the maximal bipartite entanglement of q (1 ≤ q ≤ m) ebits. We also obtain the sufficient and necessary condition that the Dicke-class states $\|\overline D_{N}^{(m)}\rangle$ have the maximal bipartite entanglement. We illustrate our idea using the four-qubit Dicke state with two excitations. It is shown that our proposed Dicke-class states have distinct advantages over the symmetric Dicke state in perfect quantum information processing.
Starting Page	403
Ending Page	407
Page Count	5
File Format	PDF
ISSN	14346060
Journal	The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics
Volume Number	58
Issue Number	3
e-ISSN	14346079
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-04-26
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nonlinear Dynamics Spectroscopy/Spectrometry Quantum Information Technology, Spintronics Quantum Physics Physical Chemistry Atomic, Molecular, Optical and Plasma Physics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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