搜索结果: 31-45 共查到“物理学 Magnetic field”相关记录121条 . 查询时间(0.056 秒)
Detection of spin injection into a double quantum dot: Violation of magnetic-field-inversion symmetry of nuclear polarization instabilities
Detection of spin injection double quantum dot: Violation nuclear polarization instabilities
2010/11/19
In mesoscopic systems with spin-orbit coupling, spin-injection into quantum dots at zero magnetic eld is expected under a wide range of conditions. However, up to now, a viable approach for experimen...
Modification of Coulomb law and energy levels of the hydrogen atom in superstrong magnetic field
Coulomb law energy levels the hydrogen atom
2010/11/17
We obtain the following analytical formula which describes the dependence of the electric potential of a point-like charge on the distance away from it in the direction of an external magnetic field B...
Gravitational Waves from the $r$-mode instability of neutron stars: effect of magnetic field
Gravitational Waves $r$-mode instability neutron stars: effect magnetic field
2010/12/20
Studies have shown that emission of gravitational waves drives an instability in the r-modes
of young rapidly rotating neutron stars carrying away most of the angular momentum through
gravitational ...
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films
Intricacies of Strain Magnetic Field Induced Charge Order
2010/11/25
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films.
Measurements of vector magnetic field using multiple electromagnetically induced transparency resonances in Rb vapor
magnetic field Rb vapor
2010/11/12
We study intensity distribution of transmission resonances under the conditions of electromagnetically induced transparency (EIT) with lin||lin configuration in 87Rb vapor. We demonstrate that for va...
Quasinormal modes, scattering and Hawking radiation of Kerr-Newman black holes in a magnetic field
Quasinormal modes Kerr-Newman black holes magnetic field
2010/12/20
We perform a comprehensive analysis of the spectrum of proper oscillations (quasinormal modes),
transmission/reflection coefficients and Hawking radiation for a massive charged scalar field in the ba...
Evolution of Microscopic Localization in Graphene in a Magnetic Field from Scattering Resonances to Quantum Dots
Evolution of Microscopic Localization Scattering Resonances Quantum Dots
2010/11/18
Graphene is a unique two–dimensional material with rich new physics and great promise for applications in electronic devices. Physical phenomena such as the half-integer quantum Hall effect and high c...
Critical Magnetic Field Ratio of Anisotropic Magnetic Superconductors
Upper critical field Lower critical field Ginzburg-Landau Theory anisotropy magnetic superconductors
2010/11/18
The upper critical field, the lower critical field and the critical magnetic field ratio of anisotropic magnetic superconductors are calculated by Ginzburg-Landau theory analytically. The effect of th...
Coulomb Oscillations of Indium-doped ZnO Nanowire Transistors in a Magnetic Field
Coulomb Oscillations Indium-doped ZnO Nanowire Transistors Magnetic Field
2010/11/9
We report on the observation of Coulomb oscillations from localized quantum dots superimposed on the normal hopping current in ZnO nanowire transistors. The Coulomb oscillations can be resolved up to ...
An alternative approach to exact wave functions for time-dependent coupled oscillator model of charged particle in variable magnetic field
time-dependent coupled oscillator model charged particle variable magnetic field
2010/11/4
A general treatment of the quantal time-dependent coupled oscillators in presence of the variable magnetic field is presented. The treatment is based on the use of an alternative canonical transforma...
Polarization-preserving confocal microscope for optical experiments in a dilution refrigerator with high magnetic field
Polarization-preserving confocal microscope optical experiments dilution refrigerator magnetic field
2010/11/11
We present the design and operation of a fiber-based cryogenic confocal microscope. It is designed as a compact cold-finger that fits inside the bore of a superconducting magnet, and which is a modula...
Differential Light Shift Cancellation in a Magnetic-Field-Insensitive Transition of $^{87}$Rb
Differential Light Shift Cancellation Magnetic-Field-Insensitive Transition
2010/10/29
We demonstrate near-complete cancellation of the differential light shift of a two-photon magnetic-field-insensitive microwave hyperfine (clock) transition in $^{87}$Rb atoms trapped in an optical la...
Prefect Transfer of Quantum States on Spin Chain with Dzyaloshinskii- Moriya interaction in inhomogeneous Magnetic field
XY Spin-Chain Teleportation Dzyaloshinskii-Moriya interaction
2010/10/29
In this work, we use the Hamiltonian of a modified Dzyaloshinskii-Moriya model and investigate the perfect transfer of the quantum state on the spin networks. In this paper, we calculate fidelity in w...
Wave packet revivals in a graphene quantum dot in a perpendicular magnetic field
packet revivals graphene quantum dot perpendicular magnetic field
2010/10/27
We study the time-evolution of localized wavepackets in graphene quantum dots in a perpendicular magnetic field, focusing on the quasiclassical and revival periodicities, for different values of the m...
Realtime magnetic field sensing and imaging using a single spin in diamond
Realtime magnetic field sensing imaging diamond
2010/10/27
The Zeeman splitting of a localized single spin can be used to construct a magnetometer allowing high precision measurements of magnetic fields with almost atomic spatial resolution.