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Ultimate crack and lack of any security in the statistical key exchange protocol with random signals and feedback
Ultimate crack Quantum Physics
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2010/11/8
We deterministically crack the secure, statistical key exchange protocol based on feedback proposed by Pao-Lo Liu [ J. Lightwave Techology 27 (2009) pp. 5230-34]. The crack is ultimate and absolute be...
Principles of Physical Layer Security in Multiuser Wireless Networks: A Survey
Principles of Physical Layer Security Multiuser Wireless Networks
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2010/11/22
This paper provides a comprehensive review of the domain of physical layer security for wireless communications. The essential premise of physical-layer security is to enable the exchange of confiden...
Extremal Quantum Correlations and Cryptographic Security
Extremal Quantum Correlations Cryptographic Security
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2010/10/29
We investigate fundamental properties of device independent security in quantum cryptography and show a one-to-one correspondence between extremal and secure probability distributions. This allows us ...
Security of quantum key distribution with state-dependent imperfections
quantum key distribution state-dependent imperfection security
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2010/10/18
In practical quantum key distribution (QKD) system, the state prepara-tion and measurement are imperfect comparing with the ideal BB84 proto-col, which are always state-dependent in practical realizat...
Experimentally Feasible Security Check for n-qubit Quantum Secret Sharing
Experimentally Feasible Security Check for n-qubit Quantum Secret Sharing
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2010/10/21
In this article we present a general security strategy for quantum secret sharing (QSS) protocols based on the HBB scheme presented by Hillery, Buˇzek and Berthiaume [Phys. Rev A 59, 1829 (1999)]. We ...
Does Security Transaction Volume-Price Behavior Resemble a Probability Wave?
Price volatility Volume kurtosis Volume-price behavior Coherence Probability wave
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2010/4/27
Motivated by how transaction amount constrain trading volume and price volatility in stock market, we, in this paper, study the relation between volume and price if amount of transaction is given. We ...
A Security Price Volatile Trading Conditioning Model
behavioral finance transaction volume-price probability wave price volatility trading conditioning disposition effect herd behavior excessive trading econophysics
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2010/4/27
We develop a theoretical trading conditioning model subject to price volatility and return information in terms of market psychological behavior, based on analytical transaction volume-price probabili...