搜索结果: 1-15 共查到“物理学 Channels”相关记录23条 . 查询时间(0.109 秒)
Iterative water-filling for Gaussian vector multiple access channels
channel capacity convex optimization Gaussian channels multiuser channels multiple-access channels multipleaccess communications multiple-antenna systems optimization methods power control water-filling
2015/8/11
We develop an efficient iterative water-filling algorithm to find an optimal transmit spectrum for maximum sum capacity in a Gaussian multiple access channel with vector inputs and a vector output. Th...
Lognormal Distribution of Single Molecule Fluorescence Bursts in Micro/Nano-Fluidic Channels
Lognormal Distribution Single Molecule Fluorescence Burst Micro/Nano-Fluidic Channels
2011/8/5
Abstract: The width and shape of photon burst histograms pose significant limitations to the identification of single molecules in micro/nano-fluidic channels, and the nature of these histograms is no...
Unitary coupled-channels model for three-mesons decays of heavy mesons
heavy-meson hadronic decay exotic meson 3-body unitarity
2011/7/21
A unitary coupled-channels model is presented for investigating the decays of heavy mesons and excited meson states into three light pseudoscalar mesons. The model accounts for the three-mesons final ...
A new class of quantum channels called Grassmann channels is introduced and their classical and quantum capacity is calculated. The channel class appears in a study of the two-mode squeezing operator...
A new class of quantum channels called Grassmann channels is introduced and their classical and
quantum capacity is calculated. The channel class appears in a study of the two-mode squeezing
operato...
Continuous variable quantum key distribution in non-Markovian channels
non-Markovian variable quantum
2010/11/8
We address continuous variable quantum key distribution (QKD) in non-Markovian lossy channels and show how the non-Markovian features may be exploited to enhance security and/or to detect the presence...
Curved plasma channels: Kerr lens and Airy prism
Curved plasma channels Kerr lens Airy prism
2010/11/16
We analytically calculate the transverse energy fluxes that would be respectively induced in high-power Airy beams by the Kerr self-focusing and the Airy profile itself if they were the only active p...
Entanglement cannot make imperfect quantum channels perfect
Entanglement imperfect quantum channels perfect
2010/11/8
Entangled inputs can enhance the capacity of quantum channels, this being one of the consequences of the celebrated result showing the non-additivity of several quantities relevant for quantum informa...
Coupled-channels density-matrix approach to low-energy nuclear collision dynamics: A technique for quantifying quantum decoherence effects on reaction observables
Coupled-channels density-matrix low-energy nuclear collision dynamics reaction observables
2010/11/11
The coupled-channels density-matrix technique for nuclear reaction dynamics, which is based on the Liouville-von Neumann equation with Lindblad dissipative terms, is developed with the inclusion of fu...
Measurement of damping and temperature: Precision bounds in Gaussian dissipative channels
Measurement damping temperature Precision bounds Gaussian dissipative channels
2010/10/29
We present a comprehensive analysis of the performance of different classes of Gaussian states in the estimation of Gaussian phase-insensitive dissipative channels. In particular, we investigate the ...
Quantum capacity under adversarial quantum noise: arbitrarily varying quantum channels
Quantum capacity adversarial quantum noise arbitrarily varying quantum channels
2010/10/29
We investigate entanglement transmission over an unknown channel in the presence of a third party (called the adversary), which is enabled to choose the channel from a given set of memoryless but non...
Entanglement can increase asymptotic rates of zero-error classical communication over classical channels
Entanglement asymptotic rates zero-error classical communication classical channels
2010/10/18
It is known that the number of di erent classical messages which can be communicated
with a single use of a classical channel with zero probability of decoding error can sometimes
be increased by us...
Robustness of bipartite Gaussian entangled beams propagating in lossy channels
Robustness bipartite Gaussian entangled beams propagating lossy channels
2010/10/20
Subtle quantum properties o er exciting new prospects in optical communications. Quan-
tum entanglement enables the secure exchange of cryptographic keys [1] and the distribu-
tion of quantum inform...
The optimal unitary dilation for bosonic Gaussian channels
The optimal unitary dilation bosonic Gaussian channels
2010/10/18
A generic quantum channel can be represented in terms of a unitary interaction between the informationcarrying system and a noisy environment. Here, the minimal number of quantum Gaussian environmenta...
Distinguishing quantum channels via magic squares game
Quantum magic squares game quantum memory success probability
2010/3/10
We study the effect of quantum memory in magic squares game when played in quantum domain. We consider different noisy quantum channels and analyze their influence on the magic squares quantum pseudo-...