搜索结果: 136-150 共查到“知识库 原子分子物理学”相关记录638条 . 查询时间(0.979 秒)
Influence of the electrons on the stability of one-dimensional chains of metals
electrons one-dimensional chains metals
2011/8/4
Abstract: The physical model describing the influence of the electronic subsystem on the properties of one-dimensional chains of metal is presented. It is shown that depending on an interaction potent...
Frequency Comb Velocity-Modulation Spectroscopy
Frequency Comb Velocity Modulation Spectroscopy Atomic Physics
2011/8/4
Abstract: We have demonstrated a new technique that provides massively parallel comb spectroscopy sensitive specifically to ions through the combination of cavity-enhanced direct frequency comb spectr...
Long timescale dynamics of spin textures in a degenerate F=1 $^{87}$ Rb spinor Bose gas
Long timescale dynamics spin textures Rb spinor Bose gas
2011/8/17
Abstract: We investigate the long-term dynamics of spin textures prepared by cooling unmagnetized spinor gases of F=1 $^{87}$Rb to quantum degeneracy, observing domain coarsening and a strong dependen...
Simulation of spin-polarized scanning tunneling microscopy on complex magnetic surfaces: The case of a Cr monolayer on Ag(111)
spin-polarized scanning tunneling complex magnetic surfaces Cr monolayer Ag
2011/8/17
Abstract: We propose an atom-superposition-based method for simulating spin-polarized scanning tunneling microscopy (SP-STM) from first principles. Our approach provides bias dependent STM images in h...
Mechanism of delayed double ionization in a strong laser field
Centre de Physique Theoriqu Georgia Institute of Technology
2011/8/4
Abstract: When intense laser pulses release correlated electrons, the time delay between the ionizations may last more than one laser cycle. We show that this "Recollision-Excitation with Subsequent I...
Technique for high axial shielding factor performance of large-scale, thin, open-ended, cylindrical Metglas magnetic shields
Metglas, magnetic shielding axial shielding factor transverse shielding factor
2011/8/4
Abstract: Metglas 2705M is a low-cost commercially-available, high-permeability Cobalt-based magnetic alloy, provided as a 5.08-cm wide and 20.3-$\mu$m thick ribbon foil. We present an optimized const...
Polarization spectroscopy of an excited state transition
Polarization spectroscopy excited state transition room temperature cesium vapor
2011/8/4
Abstract: We demonstrate polarization spectroscopy of an excited state transition in room temperature cesium vapor. An anisotropy induced by a circularly polarized pump beam on the D2 transition is ob...
Temperature (in)dependence of the Casimir-Polder potential of a particle near a metallic sphere
Casimir-Polder potential particle metallic sphere Temperature independence
2011/8/16
Abstract: It has recently been shown that the Casimir-Polder potential of a particle in an energy eigenstate near a conducting body can be virtually temperature independent, provided the separation be...
Doppler cooling to the Quantum limit
Doppler Quantum limit Atomic Physics single scattering events
2011/8/4
Abstract: Doppler cooling on a narrow transition is limited by the noise of single scattering events. It shows novel features, which are in sharp contrast with cooling on a broad transition, such as a...
Physarum Polycephalum is a slime mold that apparently is able to solve shortest path problems. A mathematical model has been proposed by biologists to describe the feedback mechanism used by the slime...
Sub-Doppler laser cooling of potassium atoms
Sub-Doppler laser potassium atoms Quantum Gases
2011/8/4
Abstract: We investigate sub-Doppler laser cooling of bosonic potassium isotopes, whose small hyperfine splitting has so far prevented cooling below the Doppler temperature. We find instead that the c...
Detection of a single cobalt microparticle with a microfabricated atomic magnetometer
single cobalt microparticle microfabricated atomic magnetometer Instrumentation and Detectors
2011/8/3
Abstract: We present magnetic detection of a single, 2 {\mu}m diameter cobalt microparticle using an atomic magnetometer based on a microfabricated vapor cell. These results represent an improvement b...
Pseudospectral Calculation of Helium Wave Functions, Expectation Values, and Oscillator Strength
Pseudospectral Calculation Helium Wave Function Expectation Values Oscillator Strength
2011/8/4
Pseudospectral Calculation of Helium Wave Functions, Expectation Values, and Oscillator Strength.
Coherent manipulation of spin wave vector for polarization of photons in an atomic ensemble
spin wave vector Coherent manipulation polarization of photons atomic ensemble
2011/8/3
Abstract: We experimentally demonstrate the manipulation of two-orthogonal components of a spin wave in an atomic ensemble. Based on Raman two-photon transition and Larmor spin precession induced by m...
Analysis technique for exceptional points in open quantum systems and QPT analogy for the appearance of irreversibility
Analysis technique exceptional points open quantum systems QPT analogy the appearance of irreversibility
2011/8/16
Abstract: We propose an analysis technique for the exceptional points (EPs) occurring in the discrete spectrum of open quantum systems (OQS), using a semi-infinite chain coupled to an endpoint impurit...