5 papers
Experimental demonstration of an efficient quantum phase-covariant cloning and its possible applications to simulating eavesdropping in quantum cryptography
Jiangfeng Du, Thomas Durt, Ping Zou +4
We describe a nuclear magnetic resonance (NMR) experiment which implements an efficient one-to-two qubit phase-covariant cloning machine(QPCCM). In the experiment we have achieved…
Extracting Messages Masked by Chaotic Signals of Time-delay Systems
Changsong Zhou, C. -H. Lai
We show how to extract messages masked by a chaotic signal of a time-delay system with very high dimension and many positive Lyapunov exponents. Using a special embedding coordinat…
Robustness of Supersensitivity to Small Signals in Nonlinear Dynamical Systems
Changsong Zhou, C. -H. Lai
Nonlinear dynamical systems possessing an invariant subspace can display interesting dynamical behavior, such as on-off intermittency and bubbling. This letter shows that a class o…
Simple Driven Maps As Sensitive Devices
Changsong Zhou, C. -H. Lai
Sensitive dependence of nonlinear systems on initial conditions or parameters can be useful in applications. We propose in this paper that bubbling behavior in simple driven symmet…
c = 1 conformal field theory and the fractional quantum Hall effect
Christopher Ting, C. H. Lai
We examine the application of conformal field theory to the description of the fractional quantum Hall effect (FQHE). It is found that the Gaussian model together with an app…