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Topic Area: Quantum Physics
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1. 99.996% 12C films enriched and deposited in situ
Topic: Quantum Physics
Published: 6/28/2013
Authors: Kevin Joseph Dwyer, Joshua M Pomeroy, David S Simons
Abstract: A mass selected ion beam system is used to isotopically enrich and deposit thin films, which are measured to be 99.9961(4)% 12C. In solid state quantum information, isotopic enrichment of materials has allowed significant improvements in the coheren ...

2. Casimir force in micro and nano electro mechanical systems
Topic: Quantum Physics
Published: 7/1/2011
Authors: Ricardo Decca, Vladimir A Aksyuk, Daniel Lopez
Abstract: The book chapter covers current state of the art and prospects for using micro and nano electro mechanical systems for Casimir force measurement.

3. DC-SQUID Amplifiers with over 27 GHz of Gain-Bandwidth Product Operated in the 4-8 GHz Frequency Range
Topic: Quantum Physics
Published: 3/2/2009
Authors: Lafe F. Spietz, Kent D Irwin, Jose Alberto Aumentado
Abstract: We describe measurements of the performance of ampli ers in the 4{8 GHz range using DCSQUIDs in a lumped element con guration. We have used quarter wave resonators as input transformers and multipole output transformers to couple microwave power int ...

4. Demonstrating a High Symmetric Single-Photon Heralding Efficiency in Spontaneous Parametric Downconversion
Topic: Quantum Physics
Published: 5/6/2013
Authors: Marcelo Pereira, Francisco Elohim 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 ...

5. Detection of Voigt Spectral Line Profiles of Hydrogen Radio Recombination Lines toward Sagittarius B2(N)
Topic: Quantum Physics
Published: 2/24/2010
Authors: Francis John Lovas, Azrael A. von Prochazka, Anthony J. Remijan, Dana S. Balser, Robert S. I. Ryans, Adele H. Marshall, Frederic R. Schwab, Jan M. Hollis, Phil R. Jewell
Abstract: We report the detection of Voigt spectral line profiles of radio recombination lines (RRLs) toward Sagittarius B2(N) with the 100-m Green Bank Telescope (GBT). These results constitute the first known, unambiguous detection of the Voigt spectral line ...

6. Differences Explained in Correlated-Photon Metrology Techniques
Topic: Quantum Physics
Published: 11/1/1999
Author: Alan L Migdall

7. Differential Light Shift Cancellation in a B-Field Insensitive Transition of 87Rb
Topic: Quantum Physics
Published: 2/11/2011
Authors: Radu S. Chicireanu, Karl D. Nelson, Steven M Olmschenk, Nathan Lundblad, A. Derevianko, James V Porto
Abstract: We demonstrate substantial cancellation of the differential light shift of a magnetic-field-insensitive microwave hyperfine (clock) transition in 87Rb atoms trapped in an optical lattice. Up to 95.5% of the differential light shift is cancelled while ...

8. Dirac fermion heating, current scaling, and direct insulator-quantum Hall transition in multi-layer epitaxial graphene
Topic: Quantum Physics
Published: 8/1/2013
Authors: Randolph E Elmquist, Fan-Hung Liu, Chang-Shun Hsu, Chiashain Chuang, Tak-Pong Woo, Lung-I Huang Huang, Chi-Te Laing, Yasuhiro Fukuyama, Yanfei Yang
Abstract: We have performed magnetotransport measurements on multi-layer epitaxial graphene. By increasing the driving current I through our graphene devices while keeping the bath temperature fixed, we are able to study Dirac fermion heating and current scali ...

9. Effect of Surface Modes on Photon Propagation through Dielectric Bandgaps
Topic: Quantum Physics
Published: 10/28/2009
Authors: Natalia Malkova, Sergey V Polyakov, Alan L Migdall, Garnett W Bryant
Abstract: We investigate the Hartman saturation effect of photons traveling through barriers created by bandgaps of multilayer stacks. In particular, we investigate theoretically the recently observed jumps in photon transversal times due to adding a single l ...

10. Efficient Generation of Correlated Photon Pairs in a Microstructure Fiber
Topic: Quantum Physics
Published: 12/15/2005
Authors: Jingyun Fan, Alan L Migdall, L Wang
Abstract: We report efficient generation of correlated photon pairs through degenerate four-wave mixing in microstructure fibers. With 735.7 nm pump pulses producing conjugate signal (688.5 nm) and idler (789.8 nm) photons in an 1.8 m microstructure fiber, we ...

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