搜索结果: 1-15 共查到“原子分子物理学 quantum”相关记录32条 . 查询时间(0.258 秒)
At the scale of individual atoms, physics gets weird. Researchers are working to reveal, harness, and control these strange quantum effects using quantum analog simulators — laboratory experiments tha...
Tiny optical cavities could make quantum networks possible（图）
Tiny optical cavities quantum networks
2020/4/10
Engineers at Caltech have shown that atoms in optical cavities -- tiny boxes for light -- could lead to the creation of a quantum internet. Their National Science Foundation-funded work...
JILA’s 3-D Quantum Gas Atomic Clock Offers New Dimensions in Measurement（图）
JILA 3-D Quantum Gas Atomic Clock New Dimensions Measurement
2017/10/25
JILA physicists have created an entirely new design for an atomic clock, in which strontium atoms are packed into a tiny three-dimensional (3-D) cube at 1,000 times the density of previous one-dimensi...
INVESTIGATION OF QUANTUM FLUCTUATIONS IN A NONLINEAR INTERFEROMETER WITH HARMONIC GENERATION AND COHERENT INTERACTION OF LIGHT AND CS ATOMS
optics A NONLINEAR INTERFEROMETER
2015/1/19
In the first part of this thesis, we investigate the propagation of quantum fluctuations
in a nonlinear interferometer comprising under conditions of harmonic generation
by computer simulations. Thi...
Quantum Interferometry and Correlated Two-Electron Wave-Packet Observation in Helium
Quantum Interferometry Correlated Two-Electron Wave-Packet Observation Helium Atomic Physics
2012/5/17
The concerted motion of two or more bound electrons governs atomic and molecular non-equilibrium processes and chemical reactions. It is thus a long-standing scientific dream to measure the dynamics o...
Causality and quantum interference in time-delayed laser-induced nonsequential double ionization
Causality quantum interference time-delayed laser-induced nonsequential double ionization
2011/8/5
Abstract: We perform a detailed analysis of the importance of causality within the strong-field approximation and the steepest descent framework for the recollision-excitation with subsequent tunnelin...
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...
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...
Relativistic quantum theory of high harmonic generation on atoms/ions by strong laser fields
atoms/ions strong laser fields high harmonic generation
2011/9/1
High-order harmonic generation (HHG) by hydrogenlike atoms/ions in the uniform periodic electric field, formed by the two linearly polarized counterpropagating laser beams of relativistic intensities,...
We study the tunneling through delta and double delta potentials in fractional quantum mechanics. After solving the fractional Schr\"odinger equation for these potentials, we calculate the correspond...
On the structure of the S-matrix in general boundary quantum field theory in curved space
the S-matrix quantum field theory
2010/12/23
We use the general boundary formulation (GBF) of quantum field theory to compute the S-matrix for a general interacting scalar field in curved spacetime. This S-matrix is obtained as the asymptotic li...
Molecule States in a Gate Tunable Graphene Double Quantum Dot
Molecule States Gate Tunable Graphene Double Quantum Dot
2010/11/25
We have measured a graphene double quantum dot device with multiple electrostatic gates that
are used to enhance control to investigate it. At low temperatures the transport measurements
reveal hone...
Electric-field Manipulation of the Lande' g Tensor of Holes in In0.5Ga0.5As/GaAs Self-assembled Quantum Dots
Electric-field Manipulation Self-assembled Quantum Dots
2010/11/25
The effect of an electric field on spin precession in In0.5Ga0.5As/GaAs self-assembled quantum
dots is calculated using multiband real-space envelope-function theory. The dependence of the Land´...
Interaction and filling induced quantum phases of dual Mott insulators of bosons and fermions
Interaction quantum phases of dual Mott insulators bosons fermions
2010/11/24
Many-body effects are at the very heart of diverse phenomena found in condensed-matter physics.
One striking example is the Mott insulator phase where conductivity is suppressed as a result
of a str...
Group-III assisted catalyst-free growth of InGaAs nanowires and the formation of quantum dots
Group-III assisted catalyst-free growth InGaAs nanowires quantum dots
2010/11/25
Growth of GaAs and InxGa1xAs nanowires by the group-III assisted Molecular Beam Epitaxy growth method is studied in dependence of growth temperature, with the objective of maximizing the ind...