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Electronic structure of solid nitromethane:Effects of high pressure and molecular vacancies
Electronic structure solid nitromethane high pressure and molecular vacancies
2015/10/16
The combined effect of pressure and molecular vacancies on the atomic structure and electronic properties of solid nitromethane, a prototypical energetic material, is studied at zero temperature.The s...
Weak First-Order Superfluid-Solid Quantum Phase Transitions
Zero the two-dimensional lattice model monte carlo simulation the Hamiltonian parameter space
2014/12/20
We study superfluid-solid zero-temperature transitions in two-dimensional lattice boson-spin models using worm-algorithm Monte Carlo simulations. We observe that such transitions are typically first o...
Deconfined criticality, runaway flow in the two-component scalar electrodynamics and weak first-order superfluid-solid transitions
The monte carlo model strong coupling mechanism weak coupling triple point coupling
2014/12/20
We perform a comparative Monte Carlo study of the easy-plane deconfined critical point (DCP) action and its short-range counterpart to reveal close similarities between the two models for intermediate...
Superfluidity of Grain Boundaries in Solid 4He
Quantum monte carlo simulation crystal cryogenic superfluid super fluid particles
2014/12/20
By large-scale quantum Monte Carlo simulations we show that grain boundaries in 4He crystals are generically superfluid at low temperature, with a transition temperature of the order of ～0.5 ...
Observation of Unusual Mass Transport in Solid hcp 4He
Stop the capillary constant temperature superfluid solid atoms the melting curve
2014/12/20
Solid 4He has been created off the melting curve by growth at a nearly constant mass via the “blocked capillary” technique and growth from the 4He superfluid at constant temperature. The experimental ...
Local Stress and Superfluid Properties of Solid 4He
Semi-quantitative simulation crystal crystal defects superfluids
2014/12/19
We provide a semiquantitative tool, derived from first-principles simulations, for answering the question of whether certain types of defects in solid 4He support mass superflow. Although ideal crysta...
Binding of a 3He Impurity to a Screw Dislocation in Solid 4He
Based on simulation the probability density solid atom the nucleus
2014/12/19
Using first-principles simulations for the probability density of finding a 3He atom in the vicinity of the screw dislocation in solid 4He, we determine the binding energy to the dislocation nucleus E...
Underlying Mechanism for the Giant Isochoric Compressibility of Solid 4He: Superclimb of Dislocations
Solid super fluid transportation such as volume compressibility vic glass electrode
2014/12/19
In the experiment on superfluid transport in solid 4He [Phys. Rev. Lett. 100, 235301 (2008)], Ray and Hallock observed an anomalously large isochoric compressibility: the supersolid samples demonstrat...
Observation of mass transport through solid 4He
Superfluid helium cells solid temperature
2014/12/19
By use of an experimental design that provides for superfluid helium in contact with bulk hcp 4He off the melting curve, we have observed the dc transport of mass through a cell filled with solid 4He ...
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...
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...
Entanglement is the quintessential quantum phenomenon and a necessary ingredient in most emerging quantum technologies, including quantum repeaters, quantum information processing (QIP) and the strong...
Solid state multi-ensemble quantum computer in waveguide circuit model
Solid state multi-ensemble quantum computer waveguide circuit model
2010/10/21
The first realization of solid state quantum computer was demonstrated recently by using artificial atoms – transmons in superconducting resonator. Here, we propose a novel architecture of flexible an...
Prospects for measurement-based quantum computing with solid state spins
measurement-based quantum solid state spins
2010/4/9
This article aims to review the developments, both theoretical and experimental, that have in the past decade laid the ground for a new approach to solid state quantum computing. Measurement-based qua...