Results 71 to 80 of about 536,347 (218)

Noisy frequency estimation with noisy probes

open access: yesNew Journal of Physics, 2018
We consider frequency estimation in a noisy environment with noisy probes. This builds on previous studies, most of which assume that the initial probe state is pure, while the encoding process is noisy, or that the initial probe state is mixed, while ...
Agnieszka Górecka   +5 more
doaj   +1 more source

NETS: A Non-Equilibrium Transport Sampler

open access: yesCoRR
We propose an algorithm, termed the Non-Equilibrium Transport Sampler (NETS), to sample from unnormalized probability distributions. NETS can be viewed as a variant of annealed importance sampling (AIS) based on Jarzynski's equality, in which the stochastic differential equation used to perform the non-equilibrium sampling is augmented with an ...
Michael Samuel Albergo   +1 more
openaire   +3 more sources

Energy-efficient quantum frequency estimation

open access: yesNew Journal of Physics, 2018
The problem of estimating the frequency of a two-level atom in a noisy environment is studied. Our interest is to minimise both the energetic cost of the protocol and the statistical uncertainty of the estimate.
Pietro Liuzzo-Scorpo   +5 more
doaj   +1 more source

Non-Equilibrium Biology [PDF]

open access: yesNature, 1966
Nonequilibrium Thermodynamics in Biophysics By A. Katchalsky and Peter F. Curran. (Harvard Books in Biophysics, No. 1.) Pp. x + 248. (Cambridge, Mass.: Harvard University Press; London: Oxford University Press, 1965.) 68s. net.
openaire   +1 more source

Numerical Investigation of Halbach-Array-Based Flexible Magnetic Sensors for Wide-Range Deformation Detection

open access: yesSensors
Flexible magnetic tactile sensors hold great promise for wearable electronics and intelligent robotics but often suffer from limited strain range and complex magnetic field variations due to rigid-soft coupling between the Hall sensor and magnetic layer.
Yina Han   +5 more
doaj   +1 more source

Modeling of thermal and kinetic processes in non-equilibrium plasma ignition applied to a lean combustion engine

open access: green, 2021
Jacopo Zembi   +4 more
openalex   +2 more sources

Modulating crystal plane orientation to enhance the ablation resistance of lanthanum-tungsten cathode for magnetoplasmadynamic thruster

open access: yesJournal of Materials Research and Technology
The tungsten cathode of the magnetoplasmadynamic thruster (MPDT) is a critical component that determines the long-term stability of the power system. The plasma environment causes significant ablation of the tungsten cathode due to its relatively high ...
Xinwei Zhang   +7 more
doaj   +1 more source

Surface-engineered tetracosane polymer boost gap conductivity and ablation resistance in Cu-based electrodes

open access: yesJournal of Materials Research and Technology
During electromagnetic rail launching, transition-induced damage between the armature and the track inevitably degrades performance. To elucidate the ablation mechanisms of alkane-polymer-coated electrodes under arc discharge, this study combines ...
Hongyu Zhang   +6 more
doaj   +1 more source

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