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1. Building one-time memories from isolated qubits
Topic: Quantum Information
Published: 1/14/2014
Author: Yi-Kai Liu
Abstract: One-time memories (OTM's) are a simple type of tamper-resistant cryptographic hardware, that can be used to implement many forms of secure computation, such as one-time programs. Here we investigate the possibility of building OTM's using "isola ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913746

2. Entangled photon generation in a phase-modulated, quasi-phasematched crystal
Topic: Quantum Information
Published: 10/14/2013
Authors: Paulina S Kuo, Jason S. Pelc, Oliver T Slattery, Yong-Su Kim, Xiao Tang
Abstract: We propose a scheme to generate polarization-entangled photon pairs by spontaneous parametric downconversion in a phase-modulated, type-II, quasi-phasematched (QPM) crystal. Instead of using two distinct crystals to generate |HV>and |VH> stat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914712

3. Mode reconstruction of a light field by multi-photon statistics
Topic: Quantum Information
Published: 7/15/2013
Authors: Elizabeth A Goldschmidt, Fabrizio Piacentini, I. Ruo Berchera, Sergey V Polyakov, Silke Peters, Stefan Kuck, Giorgio Brida, Ivo Pietro Degiovanni, Alan L Migdall, Marco Genovese
Abstract: Knowing the underlying number and structure of occupied modes of a light field plays a crucial role in minimizing loss and decoherence of quantum information. Typically, full characterization of the mode structure involves a series of several separ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913292

4. Implementation of generalized quantum measurements for unambiguous discrimination of multiple nonorthogonal coherent states
Topic: Quantum Information
Published: 6/18/2013
Authors: Francisco E. Becerra Chavez, Jingyun Fan, Alan L Migdall
Abstract: Generalized quantum measurements can perform perfect discrimination of nonorthogonal states by allowing for inconclusive results, task which is impossible performing only measurements with definite outcomes. We demonstrate the realization of genera ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912966

5. Efficient, low-noise, single-photon frequency conversion
Topic: Quantum Information
Published: 6/9/2013
Authors: Paulina S Kuo, Jason S. Pelc, Oliver T Slattery, Yong-Su Kim, M. M. Fejer, Xiao Tang
Abstract: We demonstrate simultaneous low-noise and efficient frequency conversion in a periodically poled LiNbO3 waveguide with spectral filtering. We achieve >50% external conversion efficiency and 600 noise counts per second at peak conversion.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913243

6. Demonstrating a High Symmetric Single-Photon Heralding Efficiency in Spontaneous Parametric Downconversion
Topic: Quantum Information
Published: 5/6/2013
Authors: Marcelo Pereira, Francisco E. Becerra Chavez, Boris L. Glebov, Jingyun Fan, Sae Woo Nam, Alan L Migdall
Abstract: We demonstrate a symmetric, single-spatial mode, single-photon heralding efficiency of 84% for a type-II spontaneous parametric downconversion process. This achievement of high efficiency, single-spatial mode collection is key to enabling many quantu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913209

7. Experimental test of an event-based corpuscular model modification as an alternative to quantum mechanics
Topic: Quantum Information
Published: 2/13/2013
Authors: Giorgio Brida, Ivo Pietro Degiovanni, Marco Genovese, Alan L Migdall, Fabrizio Piacentini, Sergey V Polyakov, Paola Traina
Abstract: We present the first experimental test that distinguishes between an Event-Based Corpuscular Model (EBCM)9) of the interaction of photons with matter and quantum mechanics. The test looks at the interference that results as a single photon passes t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912062

8. Experimental demonstration of a receiver beating the standard quantum limit for multiple nonorthogonal coherent-state discrimination
Topic: Quantum Information
Published: 1/6/2013
Authors: Francisco E. Becerra Chavez, Jingyun Fan, Gerald Baumgartner, Julius Goldhar, Jonathan Kosloski, Alan L Migdall
Abstract: The measurement of the state of a quantum system with inherent quantum uncertainty (noise) approaching the ultimate physical limits is of both technological and fundamental interest. Quantum noise prevents any mutually nonorthogonal quantum states ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912063

9. Adaptive measurements in nonorthogonal state discrimination
Topic: Quantum Information
Published: 12/18/2012
Authors: Francisco E. Becerra Chavez, Alan L Migdall
Abstract: Adaptive measurements represent important resources in quantum information science and quan- tum technologies. They take advantage of the knowledge of partial measurements of the system to optimize subsequent measurements and perform tasks that are ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912397

10. Preface to Proceedings of the International Conference Quantum Theory: Reconsideration of Foundations-6 (QTRF6) held in Vaxjo, Sweden, 11-14 June 2012
Topic: Quantum Information
Published: 12/18/2012
Authors: Harald Atmanspacher, Andrei Khrennikov, Alan L Migdall, Sergey V Polyakov
Abstract: A wide spectrum of topics was presented in talks at this conference: quantum foundations (especially, Heisenberg's uncertainty relation and its generalizations) and information, mathematical formalism of quantum theory, philosophy, methodology of m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912778



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