搜索结果: 1-15 共查到“理论物理学 Noise”相关记录36条 . 查询时间(0.177 秒)
Small fluctuations in epitaxial growth via conservative noise
Small fluctuations epitaxial growth conservative noise
2015/10/16
We study the combined effect of growth (material deposition from above) and nearest-neighbor entropic and force-dipole interactions in a stochastically perturbed system of N line defects (steps) on a ...
A microscopic model of electronic field noise heating in ion traps
A microscopic model electronic field noise heating ion traps
2011/9/13
Motional heating of ions in micro-fabricated traps is one of the open challenges hindering experi-mental realizations of large-scale quantum processing devices. Recently a series of measurements of th...
Random matrix approach in search for weak signals immersed in background noise
Random matrix weak signals immerse background noise
2011/8/4
Abstract: We present new, original and alternative method for searching signals coded in noisy data. The method is based on the properties of random matrix eigenvalue spectra. First, we describe gener...
Increased Brownian force noise from molecular impacts in a constrained volume
Brownian force noise molecular impacts constrained volume
2011/8/17
Abstract: We report on residual gas damping of the motion of a macroscopic test mass enclosed in a nearby housing in the molecular flow regime. The damping coefficient, and thus the associated thermal...
Reconstructing signals from noisy data with unknown signal and noise covariance
statistics information theory statistical mechanics
2011/8/17
Abstract: We derive a method to reconstruct Gaussian signals from linear measurements with Gaussian noise. This new algorithm is intended for applications in astrophysics and other sciences. The start...
Fluid dynamics and noise in bacterial cell-cell and cell-surface scattering
Fluid dynamics noise bacterial cell-cell cell-surface scattering
2011/8/4
Abstract: Bacterial processes ranging from gene expression to motility and biofilm formation are constantly challenged by internal and external noise. While the importance of stochastic fluctuations h...
Noise kernel for a quantum field in Schwarzschild spacetime under the Gaussian approximation
quantum field Schwarzschild spacetime Gaussian approximation
2010/12/20
A method is given to compute the noise kernel, defined as the symmetrized con-nected 2-point function of the stress tensor, for the conformally invariant scalar field in the Hartle-Hawking state in Sc...
The efficiency of extracting single atoms or molecules from an ultracold bosonic reservoir is theoretically investigated for a protocol based on lasers, coupling the hyperfine state in which the atoms...
Laser phase noise effects on the dynamics of optomechanical resonators
optomechanical resonators laser phase noise Quantum Physics
2010/11/8
We investigate theoretically the influence of laser phase noise on the cooling and heating of a generic cavity optomechanical system. We derive the back-action damping and heating rates and the mechan...
Effective phase dynamics of noise-induced oscillations in excitable systems
phase dynamics noise-induced oscillations excitable systems
2010/4/1
We develop an effective description of noise-induced oscillations based on deterministic phase dynamics. The phase equation is constructed to exhibit correct frequency and distribution density of nois...
Noise resilient quantum interface based on QND interaction
quantum interface Noise resilient quantum-non-demolition interactions
2010/3/10
We propose a quantum interface protocol based on two quantum-non-demolition interactions (QND) arranged either in sequence or in parallel. Since the QND coupling arises naturally in interactions betwe...
Capacities of lossy bosonic channel with correlated noise
lossy bosonic channel correlated noise
2010/4/12
We evaluate the information capacities of a lossy bosonic channel with correlated noise. The model generalizes the one recently discussed in [Phys. Rev. A 77, 052324 (2008)], where memory effects come...
Highly efficient energy excitation transfer in light-harvesting complexes: The fundamental role of noise-assisted transport
energy excitation light-harvesting complexes undamental role of noise-assisted transport
2010/4/9
Excitation transfer through interacting systems plays an important role in many areas of physics, chemistry, and biology. The uncontrollable interaction of the transmission network with a noisy enviro...
Noise effects in a three-player Prisoner's Dilemma quantum game
Prisoner＇s Dilemma Three-player Decoherenc Correlated Noise Dephasing Channel
2010/4/8
We study the three-player Prisoner's Dilemma game under the effect of decoherence and correlated noise. It is seen that the quantum player is always better off over the classical players. It is also s...
Non-commuting noises may give rise to entanglement sudden death. By considering the decoherence dynamics during establishment of the channel states and noisy recovery operations, we study further the ...