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Topic Area: Quantum Information and Measurements
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Displaying records 11 to 17.
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11. Nature and Measure of Entanglement in Quantum Phase Transactions
Topic: Quantum Information and Measurements
Published: 10/1/2004
Authors: Rolando Somma, Gerardo Ortiz, Howard Barnum, Emanuel H Knill, Lorenza Viola
Abstract: The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A pre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150089

12. Non-degenerated sequential time-bin entanglement generation using periodically poled KTP waveguide
Topic: Quantum Information and Measurements
Published: 8/31/2009
Authors: Xiao Tang, Lijun Ma, Oliver T Slattery, Tiejun Chang
Abstract: We have experimentally implemented a non-degenerate sequential time-bin entangled photon-pair source using a periodically poled potassium titanyl phosphate (PPKTP) waveguide at a clock rate of 1 GHz. The wavelengths of the signal and idler are 895 an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902703

13. Practical long-distance quantum key distribution system using decoy levels
Topic: Quantum Information and Measurements
Published: 4/30/2009
Authors: Danna Rosenberg, Charles G Peterson, Jim A Harrington, Patrick R Rice, N. Dallman, K. T Tyagi, K. P McCabe, Sae Woo Nam, Burm Baek, Robert Hadfield, Richard J Hughes, Jane E Nordholt
Abstract: Quantum key distribution (QKD) has the potential for widespread real-world applications, but no secure long-distance experiment has demonstrated the truly practical operation needed to move QKD from the laboratory to the real world due largely to lim ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33013

14. Quantum Computing with Realistically Noisy Devices
Topic: Quantum Information and Measurements
Published: 10/1/2005
Author: Emanuel H Knill
Abstract: There are quantum algorithms that can efficiently simulate quantum physics, factor large numbers and estimate integrals. As a result, quantum computers can solve otherwise intractable computational problems. One of the main problems of experimental ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150020

15. Realization of Quantum Error Correction
Topic: Quantum Information and Measurements
Published: 12/1/2004
Authors: J Chiaverini, D. Leibfried, T Schaetz, M D Barrett, R. B. Blakestad, J. Britton, W M Itano, J. D. Jost, Emanuel H Knill, C. Langer, R Ozeri, David J Wineland
Abstract: The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A pre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150084

16. Stability of Global Entanglement in Thermal States of Spin Chains
Topic: Quantum Information and Measurements
Published: 10/1/2005
Authors: Stephen Bullock, G K Brennen
Abstract: The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A pre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150082

17. Tunable up-conversion detector for single photon and bi-photon near-infrared spectroscopic applications
Topic: Quantum Information and Measurements
Published: 4/29/2013
Authors: Oliver T Slattery, Lijun Ma, Paulina S Kuo, Yong-Su Kim, Xiao Tang
Abstract: A tunable waveguide-based frequency up-conversion detector is used for single photon level near infrared (IR) spectroscopic measurements. Applications include direct spectroscopic measurement of week near IR signals and remote bi-photon spectroscopy. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913898



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