搜索结果: 1-15 共查到“理学 ensembles”相关记录47条 . 查询时间(0.116 秒)
One-step generation of multipartite entanglement among nitrogen-vacancy center ensembles
One-step generation multipartite entanglement nitrogen-vacancy center ensembles
2016/1/22
We describe a one-step, deterministic and scalable scheme for creating macroscopic arbitrary entangled coherent states (ECSs) of separate nitrogen-vacancy center ensembles (NVEs) that couple to a supe...
Attainment of the multiple quantum Chernoff bound for certain ensembles of mixed states
multiple quantum Chernoff bound certain ensembles mixed states
2015/8/25
We consider the problem of detecting the true quantum state among r possible ones, based onmeasurements performed on n of copies of a finite dimensional quantum system. It is known that the exponent f...
The asymptotic error floor of LDPC ensembles under BP decoding
Binary no memory random elements the noise
2015/8/21
We consider communication over binary memoryless symmetric channels using random elements from irregular low density parity check code (LDPC) ensembles, and belief propagation (BP) decoding. Under the...
FINITE-LENGTH SCALING FOR ITERATIVELY DECODED LDPC ENSEMBLES
low-density parity-check codes iterative decoding density evolution binary erasure channel finite-length analysis error probability curve
2015/8/21
In this paper we investigate the behavior of iteratively decoded low-density paritycheck codes over the binary erasure channel in the so-called “waterfall region.” We show that the performance curves ...
Hole digging in ensembles of tunneling molecular magnets
Quantum tunneling magnetic molecules monte carlo simulation tunnel lorentz line shape crystal
2014/12/20
The nuclear spin-mediated quantum relaxation of ensembles of tunneling magnetic molecules causes a “hole” to appear in the distribution of internal fields in the system. The form of this hole and its ...
Overcoming the slowing down of flat-histogram Monte Carlo simulations: Cluster updates and optimized broad-histogram ensembles
Monte carlo simulation energy d ferromagnetic ising model
2014/12/20
We study the performance of Monte Carlo simulations that sample a broad histogram in energy by determining the mean first-passage time to span the entire energy space of d-dimensional ferromagnetic Is...
Reply to “Comment on ‘Hole digging in ensembles of tunneling molecular magnets’ ”
Bias magnetization the molecular rotation the monte carlo simulation magnetization relaxation lattice
2014/12/20
Our work has argued for a particular scaling form governing the distribution M(ξ,t) of magnetization over bias ξ, for a system of dipolar-interacting molecular spins. This form, which was found in Mon...
Short ensembles: an efficient method for discerning climate-relevant sensitivities in atmospheric general circulation models
effi cient method discerning climate-relevant sensitivities
2014/12/19
This paper explores the feasibility of an experimentation strategy for investigating sensitivities in fast components of atmospheric general circulation models.
We define a new diffusive matrix model converging towards the $\beta$-Dyson Brownian motion for all $\beta\in [0,2]$ that provides an explicit construction of $\beta$-ensembles of random matrices that...
Scaling Behavior of Convolutional LDPC Ensembles over the BEC
Convolutional LDPC Ensembles BEC Information Theory
2011/9/2
Abstract: We study the scaling behavior of coupled sparse graph codes over the binary erasure channel. In particular, let 2L+1 be the length of the coupled chain, let M be the number of variables in e...
Perturbation approach to multifractal dimensions for certain critical random matrix ensembles
multifractal dimensions Perturbation random matrix ensembles
2011/7/6
Fractal dimensions of eigenfunctions for various critical random matrix ensembles are investigated in perturbation series in the regimes of strong and weak multifractality. In both regimes we obtain e...
Asymptotic Integral Kernel for Ensembles of Random Normal Matrix with Radial Potentials
Random normal matrices Integral kernels Steepest descents method
2011/7/26
Asymptotic Integral Kernel for Ensembles of Random Normal Matrix with Radial Potentials.
The polyanalytic Ginibre ensembles
Bargmann-Fock space polyanalytic function determinantal point process
2011/7/28
Abstract: We consider a polyanalytic generalization of the Ginibre ensemble. This models allowing higher Landau levels (the Ginibre ensemble corresponds to the lowest Landau level). We study the local...
Selforganisation and sympathetic cooling of multispecies ensembles in a cavity
Selforganisation multispecies
2011/9/13
We predict concurrent selforganisation and cooling of multispecies ensembles of laser-illuminated polarisable particles within a high-Q cavity mode. Resonant collective scattering of laser light into ...
A generalized plasma and interpolation between classical random matrix ensembles
generalized plasma interpolation classical random matrix ensembles
2011/1/17
The eigenvalue probability density functions of the classical random matrix ensembles have
a well known analogy with the one component log-gas at the special couplings = 1, 2 and 4.