搜索结果: 121-135 共查到“知识库 量子电子学”相关记录167条 . 查询时间(6.734 秒)
A Weak Quantum Oblivious Transfer
A Weak Quantum Transfer
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2010/10/29
Due to the commonly known impossibility results, information theoretic security is considered impossible for oblivious transfer (OT) in both the classical and the quantum world. In this paper, we prop...
Quantum metrology to probe atomic parity nonconservation
Quantum metrology probe atomic parity nonconservation
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2010/10/29
An entangled state prepared in a decoherence free sub-space together with a Ramsey type measurement can probe parity violation in heavy alkali ions like Ba+ or Ra+. Here we propose an experiment with ...
QKD: a million signal task
Quantum key distribution finite-keys
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2010/10/29
I review the ideas and main results in the derivation of security bounds in quantum key distribution for keys of finite length. In particular, all the detailed studies on specific protocols and imple...
Reexamination of determinant-based separability test for two qubits
Reexamination determinant-based separability qubits
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2010/10/29
It was shown in [Augusiak et al.,\;Phys. Rev. A \textbf{77}, 030301(R) (2008)] that discrimination between entanglement and separability in a two qubit state can be achieved by a measurement of a sin...
Direct regular-to-chaotic tunneling rates using the fictitious integrable system approach
Direct regular-to-chaotic tunneling rates fictitious integrable system approach
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2010/10/21
We review the fictitious integrable system approach which predicts dynamical tunneling rates
from regular states to the chaotic region in systems with a mixed phase space. It is based on the introduc...
Optimal measurements to access classical correlations of two-qubit states
Optimal measurements classical correlations two-qubit states
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2010/10/19
We analyze the optimal measurements accessing classical correlations in arbitrary two-qubit states.Two-qubit states can be transformed into the canonical forms via local unitary operations. For the ca...
The role of Spectator Fragments at an electron Ion collider
Spectator Fragments electron Ion collider
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2010/3/16
Efficient detection of spectator fragments is key to the main topics at an electron-ion collider (eIC). Any process which leads to emission of fragments or $\gamma$'s breaks coherence in diffractive p...
重量固定的目标解量子搜索算法
标签 量子搜索 计算复杂性 NTRU
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2013/9/6
针对重量固定为d的n维布尔向量目标解搜索问题, 给出了重量固定的向量标签表示方法与向量标签还原算法, 在此基础上提出了计算复杂性优于经典搜索算法的重量固定目标解量子搜索算法. 新算法计算复杂性是 , 显著低于重量固定的目标解搜索问题经典求解算法, 并以NTRU公钥密码体制的私钥求解问题为例, 验证了新算法对重量固定的目标解搜索问题求解的有效性.
Nonlinear Quantum Wave Equation of Radiation Electron and Dissipative Systems
Nonlinear Quantum Wave Equation Radiation Electron
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2010/3/10
As well known, an electron will produce radiative reaction force when the electron emits electromagnetism radiation. The electron radiative effect had not been considered in Schr\"{o}dinger wave equat...
Superconducting nanowire single photon detectors for quantum information and communications
Superconducting nanowire single photon detectors quantum key distribution Gifford-McMahon
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2010/3/10
Superconducting nanowire single photon detectors (SNSPD or SSPD) are highly promising devices in the growing field of quantum information and communications technology. We have developed a practical S...
Measurements of h_c(^1P_1) in psi' Decays
h_c(^1P_1) psi' Decays charmonium state
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2010/3/15
We present measurements of the charmonium state $h_c(^1P_1)$ made with 106M $\psi'$ events collected by BESIII at BEPCII. Clear signals are observed for $\psi'\to\pi^0 h_c$ with and without the subseq...
Passive scheme with a photon-number-resolving detector for decoy-state quantum key distribution with an untrusted source
photon-number-resolving decoy-state quantum
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2010/3/10
A passive scheme with a photon-number-resolving (PNR) detector and a beam splitter which are used to monitor the statistical characteristics of photon source, is proposed to verify the security of vac...
NNLL resummation for s-channel single top quark production
next-to-next-to-leading-logarithm next-to-next-to-leading orde top quark
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2010/3/15
I present the next-to-next-to-leading-logarithm (NNLL) resummation of soft and collinear gluon corrections to single top quark production in the s channel. Attaining NNLL accuracy involves the calcula...
Decoherence as a signature of an excited state quantum phase transition
Decoherence excited state quantum phase transition
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2010/3/10
We analyze the decoherence induced on a single qubit by the interaction with a two-level boson system with critical internal dynamics. We explore how the decoherence process is affected by the presenc...