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Quantum cryptography
 Rev. Mod. Phys
, 2002
"... Quantum cryptography could well be the first application of quantum mechanics at the individual quanta level. The very fast progress in both theory and experiments over the recent years are reviewed, with emphasis on open questions and technological issues. Contents I ..."
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Cited by 182 (6 self)
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Quantum cryptography could well be the first application of quantum mechanics at the individual quanta level. The very fast progress in both theory and experiments over the recent years are reviewed, with emphasis on open questions and technological issues. Contents I
Fidelity, susceptibility and critical exponents in the Dicke model
"... Abstract. We calculate numerically the fidelity and its susceptibility for the ground state of the Dicke model. A minimum in the fidelity identifies the critical value of the interaction where a quantum phase crossover, the precursor of a phase transition for finite number of atoms N, takes place. T ..."
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Abstract. We calculate numerically the fidelity and its susceptibility for the ground state of the Dicke model. A minimum in the fidelity identifies the critical value of the interaction where a quantum phase crossover, the precursor of a phase transition for finite number of atoms N, takes place
c ○ Rinton Press SUB – AND SUPER–FIDELITY AS BOUNDS FOR QUANTUM FIDELITY
, 2008
"... We derive several bounds on fidelity between quantum states. In particular we show that fidelity is bounded from above by a simple to compute quantity we call super–fidelity. It is analogous to another quantity called sub–fidelity. For any two states of a two– dimensional quantum system (N = 2) all ..."
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We derive several bounds on fidelity between quantum states. In particular we show that fidelity is bounded from above by a simple to compute quantity we call super–fidelity. It is analogous to another quantity called sub–fidelity. For any two states of a two– dimensional quantum system (N = 2) all
Notes on the fidelity of symplectic quantum errorcorrecting codes
 International Journal on Quantum Information
, 2003
"... Two observations are given on the fidelity of schemes for quantum information processing. In the first one, we shows that the fidelity of a symplectic (stabilizer) code, if properly defined, exactly equals the ‘probability ’ of the correctable errors for general quantum channels. The second observat ..."
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Cited by 16 (4 self)
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Two observations are given on the fidelity of schemes for quantum information processing. In the first one, we shows that the fidelity of a symplectic (stabilizer) code, if properly defined, exactly equals the ‘probability ’ of the correctable errors for general quantum channels. The second
The Pendulum Approximation for Fidelity in Quantum Kicked Rotor Systems
, 2010
"... under the supervision of ..."
Measuring Fidelity Decay on an NMR Quantum Computer
"... In classical mechanics, the distinction between regular and chaotic systems is clear the distance between two states in phase space, initially close to each other, grows exponentially in time. However, in quantum mechanics, unitary evolution ..."
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In classical mechanics, the distinction between regular and chaotic systems is clear the distance between two states in phase space, initially close to each other, grows exponentially in time. However, in quantum mechanics, unitary evolution
TITLE: The Conjugate Field Fidelity Susceptibility (CFFS): A Novel Computational Approach to Quantum Phase Transitions
, 2010
"... This work introduces a new technique for the determination of quantum phase transitions known as the Conjugate Field Fidelity Susceptibility (CFFS) approach. The CFFS method draws highly on the Quantum Information concept of quantum fidelity susceptibility. An initial introduction to the computatio ..."
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This work introduces a new technique for the determination of quantum phase transitions known as the Conjugate Field Fidelity Susceptibility (CFFS) approach. The CFFS method draws highly on the Quantum Information concept of quantum fidelity susceptibility. An initial introduction
High Fidelity Ladar Simulation
"... The ability to extract target features from a ladar Range Resolved Doppler Image (RRDI) can enable target detection, identification, discrimination, and status assessment. Extraction of these features depends on the image processing algorithms, target characteristics, and image quality. The latter i ..."
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Cited by 1 (0 self)
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in turn depends on ladar transmitter and receiver characteristics, propagation effects, target/beam interactions, and receiver signal processing. In order to develop hardware systems and processing algorithms for a specific application, it is necessary to understand how these factors interact. A modular
Dynamics of Loschmidt echoes and fidelity decay
, 2006
"... Fidelity serves as a benchmark for the relieability in quantum information processes, and has recently atracted much interest as a measure of the susceptibility of dynamics to perturbations. A rich variety of regimes for fidelity decay have emerged. The purpose of the present review is to describe t ..."
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Fidelity serves as a benchmark for the relieability in quantum information processes, and has recently atracted much interest as a measure of the susceptibility of dynamics to perturbations. A rich variety of regimes for fidelity decay have emerged. The purpose of the present review is to describe
Reduced fidelity and quantum phase transitions in spin1/2 frustrated Heisenberg chains
, 2009
"... We use reduced fidelity to characterize quantum phase transitions in the onedimensional spin1/2 antiferromagnetic Heisenberg chain with frustration. For the ground state and the lowlying excited states, explicit results of the reduced fidelities between the nearestneighbor and nextnearestneigh ..."
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We use reduced fidelity to characterize quantum phase transitions in the onedimensional spin1/2 antiferromagnetic Heisenberg chain with frustration. For the ground state and the lowlying excited states, explicit results of the reduced fidelities between the nearestneighbor and next
Results 11  20
of
10,786