搜索结果: 16-30 共查到“物理学 solid”相关记录52条 . 查询时间(0.093 秒)
PEBSI - A Monte Carlo simulator for bremsstrahlung arising from electrons colliding with thin solid-state targets
Monte Carlo simulation polarized electrons bremsstrahlung polarization target-thickness effects hard x-ray
2012/5/31
We present a Monte Carlo code dedicated to the simulation of bremsstrahlung arising in collisions of polarized electrons with thin target foils. The program consists of an electron transport algorithm...
Performance of a 229 Thorium solid-state nuclear clock
Performance 229 Thorium solid-state nuclear clock Atomic Physics
2012/4/24
The 7.8 eV nuclear isomer transition in 229 Thorium has been suggested as an etalon transition in a new type of optical frequency standard. Here we discuss the construction of a "solid-state nuclear c...
Convergence of many-body wavefunction expansions using a plane wave basis: from the homogeneous electron gas to the solid state
Convergence many-body wavefunction expansions plane wave basis homogeneous electron gas solid state
2012/2/29
Using the finite simulation-cell homogeneous electron gas (HEG) as a model, we investigate the convergence of the correlation energy to the complete basis set (CBS) limit in methods utilising plane-wa...
Vapor-Solid Growth of Monocrystalline Zinc Nanoplates
Zinc Nanoplates Thermal evaporation Anisotropic growth
2011/12/15
Zinc nanoplates of two kinds of basal surfaces were grown using a non-catalytic and template-free thermal evaporation. High resolution tunneling electron microscopy and selected area electron diffract...
Optical Excitation and Decay Dynamics of Ytterbium Atoms Embedded in a Solid Neon Matrix
Ytterbium Atoms Embedded Optical Excitation and Decay Dynamics
2011/9/2
Neutral ytterbium atoms embedded in solid neon qualitatively retain the structure of free atoms. Despite the atom-solid interaction, the 6s6p 3P0 level is found to remain metastable with its lifetimes...
Solid phase epitaxy amorphous silicon re-growth: some insight from empirical molecular dynamics simulation
Nucleation and growth Theory and models of film growth
2011/9/1
The modelling of interface migration and the associated diffusion mechanisms at the nanoscale level is a challenging issue. For many technological applications ranging from nanoelectronic devices to s...
Comment on "Particle acceleration by stimulated emission of radiation near a solid-state active medium"
Particle acceleration stimulated emission of radiation
2011/8/31
In a recent Letter,V. Berezovsky, H. Alam, and L. Sch鋍hter have reported 揳cceleration of electrons moving in free space near an active Nd:YAG slab? The reported mechanism is particle acceleration by s...
A high dynamic range data acquisition system for a solid-state electron Electric Dipole Moment experiment
electric dipole moment, data acquisition system, channel cross-talk, systematic effect
2011/8/30
We have built a high precision (24-bit) data acquisition (DAQ) system with eight simultaneously sampling input channels for the measurement of the electric dipole moment (EDM) of the electron. The DAQ...
Quantum communications boosted by solid memory devices（图）
Quantum communications solid memory devices
2011/1/21
Two independent groups have demonstrated how a pair of entangled photons can transfer their entanglement to and from a solid – the process that should one day form the backbone of so-called quantum me...
Topological disentangler for the valence-bond-solid chain
Topological disentangler valence-bond-solid chain
2010/11/23
We discuss topological disentangler for S = 1 quantum spin chains in the Haldane phase. We first point out that Kennedy-Tasaki’s(KT) nonlocal unitary transformation is the perfect disentangler for Aff...
Semiconductor quantum ring as a solid-state spin qubit
Semiconductor quantum ring solid-state spin qubit
2010/11/19
The implementation of a spin qubit in a quantum ring occupied by one or a few electrons is proposed. Quantum bit involves the Zeeman sublevels of the highest occupied orbital. Such a qubit can be init...
Investigating metastable hcp solid helium below its melting pressure
quantum solids hcp solid helium metastability vacancy
2010/11/19
We report a first attempt to produce metastable hcp solid helium below its melting pressure. A focused sound pulse is emitted along the c-axis of a monodomain hcp helium-4 crystal starting from a stat...
Direct numerical simulation (DNS) for gas-solid flow is implemented on a multi-scale supercomputing system, Mole-8.5, featuring massive parallel GPU-CPU hybrid computing, for which the lattice Boltzm...
Progress towards fabrication of Th:229-doped high energy band-gap crystals for use as a solid-state optical frequency reference
Th:229-doped high energy band-gap crystals solid-state optical frequency
2010/11/12
We have recently described a novel method for the construction of a solid-state optical frequency reference based on doping $^{229}$Th into high energy band-gap crystals. Since nuclear transitions ar...
Ultra-bright and efficient single photon generation based on N-V centres in nanodiamonds on a solid immersion lens
photon generation N-V centres nanodiamonds
2010/11/16
Single photons are fundamental elements for quantum information technologies such as quantum cryptography, quantum information storage and optical quantum computing. Colour centres in diamond have pr...