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Bremer, J. W.; Newhouse, V. L. |
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1958 |
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Phys. Rev. Lett. |
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1 |
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282 |
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Bremer, J. W.; Newhouse, V. L. |
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MSPU @ s @ bremer_prl_1958 |
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215 |
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Author |
Shah, Jagdeep; Pinczuk, A.; Gossard, A. C.; Wiegmann, W. |
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Title |
Energy-loss rates for hot electrons and holes in GaAs quantum wells |
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1985 |
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Phys. Rev. Lett. |
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Phys. Rev. Lett. |
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54 |
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2045-2048 |
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2DEG, GaAs/AlGaAs, heat flow, electron-phonon, hole-phonon, carrier-phonon, interactions |
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We report the first direct determination of carrier-energy-loss rates in a semiconductor. These measurements provide fundamental insight into carrier-phonon interactions in semiconductors. Unexpectedly large differences are found in the energy-loss rates for electrons and holes in GaAs/AlGaAs quantum wells. This large difference results from an anomalously low electron-energy-loss rate, which we attribute to the presence of nonequilibrium optical phonons rather than the effects of reduced dimensionality or dynamic screening. |
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633 |
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Shah, Nayana; Pekker, David; Goldbart, Paul M. |
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Inherent stochasticity of superconductor-resistor switching behavior in nanowires |
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2008 |
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Phys. Rev. Lett. |
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Phys. Rev. Lett. |
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101 |
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207001(1 to 4) |
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superconducting nanowires, phase-slip, self-heating effect, temperature profile |
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We study the stochastic dynamics of superconductive-resistive switching in hysteretic current-biased superconducting nanowires undergoing phase-slip fluctuations. We evaluate the mean switching time using the master-equation formalism, and hence obtain the distribution of switching currents. We find that as the temperature is reduced this distribution initially broadens; only at lower temperatures does it show the narrowing with cooling naively expected for phase slips that are thermally activated. We also find that although several phase-slip events are generally necessary to induce switching, there is an experimentally accessible regime of temperatures and currents for which just one single phase-slip event is sufficient to induce switching, via the local heating it causes. |
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Rothwarf, Allen; Taylor, B. N. |
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Measurement of recombination lifetimes in superconductors |
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1967 |
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Phys. Rev. Lett. |
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19 |
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1 |
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27-30 |
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American Physical Society |
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MSPU @ s @ |
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220 |
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Minaeva, Olga; Bonato, Cristian; Saleh, Bahaa E. A.; Simon, David S.; Sergienko, Alexander V. |
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Odd- and even-order dispersion cancellation in quantum interferometry |
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2009 |
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Phys. Rev. Lett. |
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Phys. Rev. Lett. |
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102 |
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10 |
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4 |
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We describe a novel effect involving odd-order dispersion cancellation. We demonstrate that odd- and even-order dispersion cancellation may be obtained in different regions of a single quantum interferogram using frequency-anticorrelated entangled photons and a new type of quantum interferometer. This offers new opportunities for quantum communication and metrology in dispersive media. |
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RPLAB @ gujma @ |
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699 |
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