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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共18条记录   Quantum Theory of Fermion Production after Inflation [作者：Berges, J; Gelfand, D; Pruschke, J,期刊：PHYSICAL REVIEW LETTERS, 页码：61301-61301 , 文章类型： Article，,卷期：2011年107-6] We show that quantum effects dramatically enhance the production of fermions following preheating after inflation in the early Universe in the presence of high excitations of bosonic quanta. As a consequence, fermions ra... Bose-Einstein Condensate in a Honeycomb Optical Lattice: Fingerprint of Superfluidity at the Dirac Point [作者：Chen, Z; Wu, BA,期刊：PHYSICAL REVIEW LETTERS, 页码：65301-65301 , 文章类型： Article，,卷期：2011年107-6] Mean-field Bloch bands of a Bose-Einstein condensate in a honeycomb optical lattice are computed. We find that the topological structure of the Bloch bands at the Dirac point is changed completely by atomic interaction o... Octave Spanning Tunable Frequency Comb from a Microresonator [作者：Del'Haye, P; Herr, T; Gavartin, E; Gorodetsky, ML; Holzwarth, R; Kippenberg, TJ,期刊：PHYSICAL REVIEW LETTERS, 页码：63901-63901 , 文章类型： Article，,卷期：2011年107-6] We report the generation of an octave-spanning optical frequency comb in a continuous wave laser pumped microresonator. The generated comb spectrum covers the wavelength range from 990 to 2170 nm without relying on addit... Possible Lattice Distortions in the Hubbard Model for Graphene [作者：Frank, RL; Lieb, EH,期刊：PHYSICAL REVIEW LETTERS, 页码：66801-66801 , 文章类型： Article，,卷期：2011年107-6] The Hubbard model on the honeycomb lattice is a well-known model for graphene. Equally well known is the Peierls type of instability of the lattice bond lengths. In the context of these two approximations we ask and answ... Translocation of DNA Molecules through Nanopores with Salt Gradients: The Role of Osmotic Flow [作者：Hatlo, MM; Panja, D; van Roij, R,期刊：PHYSICAL REVIEW LETTERS, 页码：68101-68101 , 文章类型： Article，,卷期：2011年107-6] Recent experiments of translocation of double-stranded DNA through nanopores [M. Wanunu et al., Nature Nanotech. 5, 160 (2009)] reveal that the DNA capture rate can be significantly influenced by a salt gradient across t... Giant Flexoelectric Effect in Ferroelectric Epitaxial Thin Films [作者：Lee, D; Yoon, A; Jang, SY; Yoon, JG; Chung, JS; Kim, M; Scott, JF; Noh, TW,期刊：PHYSICAL REVIEW LETTERS, 页码：57602-57602 , 文章类型： Article，,卷期：2011年107-6] We report on nanoscale strain gradients in ferroelectric HoMnO(3) epitaxial thin films, resulting in a giant flexoelectric effect. Using grazing-incidence in-plane x-ray diffraction, we measured strain gradients in the f... Universality Classes of Magnetic Domain Wall Motion [作者：Lee, JC; Kim, KJ; Ryu, J; Moon, KW; Yun, SJ; Gim, GH; Lee, KS; Shin, KH; Lee, HW; Choe, SB,期刊：PHYSICAL REVIEW LETTERS, 页码：67201-67201 , 文章类型： Article，,卷期：2011年107-6] We examine magnetic domain wall motion in metallic nanowires Pt-Co-Pt. Regardless of whether the motion is driven by either magnetic fields or current, all experimental data fall onto a single universal curve in the cree... Thermal States as Universal Resources for Quantum Computation with Always-On Interactions [作者：Li, Y; Browne, DE; Kwek, LC; Raussendorf, R; Wei, TC,期刊：PHYSICAL REVIEW LETTERS, 页码：60501-60501 , 文章类型： Article，,卷期：2011年107-6] Measurement-based quantum computation utilizes an initial entangled resource state and proceeds with subsequent single-qubit measurements. It is implicitly assumed that the interactions between qubits can be switched off... General Method for Determining the Masses of Semi-Invisibly Decaying Particles at Hadron Colliders [作者：Matchev, KT; Park, M,期刊：PHYSICAL REVIEW LETTERS, 页码：61801-61801 , 文章类型： Article，,卷期：2011年107-6] We present a general solution to the long-standing problem of determining the masses of pair-produced, semi-invisibly decaying particles at hadron colliders. We define two new transverse kinematic variables M(CT perpendi... Chiral Two-Body Currents in Nuclei: Gamow-Teller Transitions and Neutrinoless Double-Beta Decay [作者：Menendez, J; Gazit, D; Schwenk, A,期刊：PHYSICAL REVIEW LETTERS, 页码：62501-62501 , 文章类型： Article，,卷期：2011年107-6] We show that chiral effective field theory (EFT) two-body currents provide important contributions to the quenching of low-momentum-transfer Gamow-Teller transitions, and use chiral EFT to predict the omentum-transfer de... Crossover from Adiabatic to Antiadiabatic Quantum Pumping with Dissipation [作者：Pellegrini, F; Negri, C; Pistolesi, F; Manini, N; Santoro, GE; Tosatti, E,期刊：PHYSICAL REVIEW LETTERS, 页码：60401-60401 , 文章类型： Article，,卷期：2011年107-6] Quantum pumping, in its different forms, is attracting attention from different fields, from fundamental quantum mechanics, to nanotechnology, to superconductivity. We investigate the crossover of quantum pumping from th... Controlling the Phase of a Light Beam with a Single Molecule [作者：Pototschnig, M; Chassagneux, Y; Hwang, J; Zumofen, G; Renn, A; Sandoghdar, V,期刊：PHYSICAL REVIEW LETTERS, 页码：63001-63001 , 文章类型： Article，,卷期：2011年107-6] We employ heterodyne interferometry to investigate the effect of a single organic molecule on the phase of a propagating laser beam. We report on the first phase-contrast images of individual molecules and demonstrate a ... Probing Gluonic Spin-Orbit Correlations in Photon Pair Production [作者：Qiu, JW; Schlegel, M; Vogelsang, W,期刊：PHYSICAL REVIEW LETTERS, 页码：62001-62001 , 文章类型： Article，,卷期：2011年107-6] We consider photon pair production in hadronic collisions at large mass and small transverse momentum of the pair, assuming that factorization in terms of transverse-momentum dependent parton distributions applies. The u... Controlling the Second Harmonic in a Phase-Matched Negative-Index Metamaterial [作者：Rose, A; Huang, D; Smith, DR,期刊：PHYSICAL REVIEW LETTERS, 页码：63902-63902 , 文章类型： Article，,卷期：2011年107-6] Nonlinear metamaterials have been predicted to support new and exciting domains in the manipulation of light, including novel phase-matching schemes for wave mixing. Most notable is the so-called nonlinear-optical mirror... Gravitational-Wave Background as a Probe of the Primordial Black-Hole Abundance (vol 102, 161101, 2009) [作者：Saito, R; Yokoyama, J,期刊：PHYSICAL REVIEW LETTERS, 页码：69901-69901 , 文章类型： Correction，,卷期：2011年107-6] Super-Alfvelnic Propagation of Substorm Reconnection Signatures and Poynting Flux [作者：Shay, MA; Drake, JF; Eastwood, JP; Phan, TD,期刊：PHYSICAL REVIEW LETTERS, 页码：65001-65001 , 文章类型： Article，,卷期：2011年107-6] The propagation of reconnection signatures and their associated energy are examined using kinetic particle-in-cell simulations and Cluster satellite observations. It is found that the quadrupolar out-of-plane magnetic fi...