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On the velocity distribution in homogeneous isotropic turbulence: correlations and deviations from Gaussianity
homogeneous isotropic turbulence deviations Gaussianity Fluid Dynamics
2011/8/1
Abstract: We investigate the single-point probability density function of the velocity in three-dimensional stationary and decaying homogeneous isotropic turbulence. To this end we apply the statistic...
Comment on "Semiquantum-key distribution using less than four quantum states"
Semiquantum-key distribution quantum states
2010/11/4
Comment on "Semiquantum-key distribution using less than four quantum states".
Min-entropy and quantum key distribution: non-zero key rates for "small" numbers of signals
min-entropy quantum key distribution non-zero key rates
2010/11/8
We calculate an achievable secret key rate for quantum key distribution with a finite number of signals, by evaluating the min-entropy explicitly. The min-entropy can be expressed in terms of the gues...
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...
Non-equilibrium steady states : maximization of the Shannon entropy associated to the distribution of dynamical trajectories in the presence of constraints
Non-equilibrium steady states Shannon entropy distribution of dynamical trajectories
2010/11/18
Filyokov and Karpov [Inzhenerno-Fizicheskii Zhurnal 13, 624 (1967)] have proposed a theory of
non-equilibrium steady states in direct analogy with the theory of equilibrium states : the principle is ...
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
2011/1/10
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Spin Observables in Transition-Distribution-Amplitude Studies
Spin Observables Transition-Distribution-Amplitude Studies
2011/1/6
Exclusive hadronic reactions with a massive lepton pair (`+`) in the final state will be
measured with PANDA at GSI-FAIR and with Compass at CERN, both in p + ¯p ! `+` + an...
Reply to "Comment on 'Semiquantum-key distribution using less than four quantum states' "
Comment on Semiquantum-key distribution quantum states
2010/11/8
Recently Boyer and Mor pointed out the first conclusion of Lemma 1 in our original paper is not correct, and therefore, the proof of Theorem 5 based on Lemma 1 is wrong. Furthermore, they gave a direc...
Limit distribution with a combination of density functions for a 2-state quantum walk
Limit distribution Time-inhomogeneous 2-state quantum walk
2010/11/5
We consider 2-state time-inhomogeneous quantum walks defined by two matrices on the line. For the time-homogeneous walks determined by a unitary matrix, the limit distribution is expressed by a simple...
Mimicking the probability distribution of a two-dimensional Grover walk with a single-qubit coin
Mimicking the probability distribution two-dimensional Grover walk single-qubit coin
2010/11/5
Multi-dimensional quantum walks usually require large coin spaces. Here we show that the non-localized case of the spatial density probability of the two-dimensional Grover walk can be obtained using ...
Device-Independent Quantum Key Distribution with Commuting Measurements
Device-Independent Quantum Key Distribution ommuting Measurements
2010/10/19
We consider quantum key distribution in the device-independent scenario, i.e., where the
legitimate parties do not know (or trust) the exact specification of their apparatus. We show
how secure key ...
Largest Schmidt eigenvalue of entangled random pure states and conductance distribution in chaotic cavities
Largest Schmidt eigenvalue entangled random pure states conductance distribution chaotic cavities
2010/10/21
A strategy to evaluate the distribution of the largest Schmidt eigenvalue for entangled random pure states of bipartite systems is proposed. We point out that the multiple integral defining the sought...
Secure device-independent quantum key distribution with causally independent measurement devices
Secure device-independent quantum key distribution causally independent measurement devices
2010/10/19
Device-independent quantum key distribution aims to provide key distribution schemes whose security is based on the laws of quantum physics but which does not require any assumptions
about the intern...
Proof-of-Concept of Real-World Quantum Key Distribution with Quantum Frames
Proof-of-Concept Real-World Quantum Quantum Frames
2010/4/7
We propose and experimentally investigate a fibre-based quantum key distribution system, which employs polarization qubits encoded into faint laser pulses. As a novel feature, it allows sending of cla...
Entangled Quantum Key Distribution with a Biased Basis Choice
Quantum Key Distribution Basis Choice
2010/4/8
We investigate a quantum key distribution (QKD) scheme which utilizes a biased basis choice in order to increase the efficiency of the scheme. The optimal bias between the two measurement bases, a mor...