Quantum information & computation, ISSN 1533-7146, 05/2013, Volume 13, Issue 5-6, pp. 379 - 392

We review some properties of the convex roof extension, a construction used, e.g., in the definition of the entanglement of formation. Especially we consider...

Diagonal map | QUANTUM SCIENCE & TECHNOLOGY | Convex roof extension | Output entropy | Entanglement | COMPUTER SCIENCE, THEORY & METHODS | PHYSICS, MATHEMATICAL | PHYSICS, PARTICLES & FIELDS

Diagonal map | QUANTUM SCIENCE & TECHNOLOGY | Convex roof extension | Output entropy | Entanglement | COMPUTER SCIENCE, THEORY & METHODS | PHYSICS, MATHEMATICAL | PHYSICS, PARTICLES & FIELDS

Journal Article

Physical Review B - Condensed Matter and Materials Physics, ISSN 1098-0121, 2006, Volume 74, Issue 14

In order to study the influence of quenched disorder on second-order phase transitions, high-temperature series expansions of the susceptibility and the free...

MONTE-CARLO | PHYSICS, CONDENSED MATTER | FERROMAGNETS | UPPER CRITICAL DIMENSION | LOGARITHMIC CORRECTIONS | PERCOLATION | POTTS | CRITICAL-BEHAVIOR | IMPURITIES | EXPANSION APPROACH | CRITICAL EXPONENTS

MONTE-CARLO | PHYSICS, CONDENSED MATTER | FERROMAGNETS | UPPER CRITICAL DIMENSION | LOGARITHMIC CORRECTIONS | PERCOLATION | POTTS | CRITICAL-BEHAVIOR | IMPURITIES | EXPANSION APPROACH | CRITICAL EXPONENTS

Journal Article

Computer Physics Communications, ISSN 0010-4655, 08/2002, Volume 147, Issue 1-2, pp. 435 - 438

We use a star-graph expansion technique to compute high-temperature series for the free energy and susceptibility of random-bond q-state Potts models on...

Quenched random disorder | High-temperature series expansions | Star graphs | Bond-diluted Ising model

Quenched random disorder | High-temperature series expansions | Star graphs | Bond-diluted Ising model

Journal Article

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, 2006, Volume 74, Issue 5, p. 051113

We present results for the high-temperature series expansions of the susceptibility and free energy of the q-state Potts model on a D-dimensional hypercubic...

2-DIMENSIONAL PERCOLATION | UNIVERSALITY | NUMBER | SITE PERCOLATION | CLUSTERS | PHYSICS, FLUIDS & PLASMAS | GENERAL DIMENSION | 3-STATE | SCALING CORRECTIONS | PHYSICS, MATHEMATICAL | 3-DIMENSIONAL LATTICES | Physics - Statistical Mechanics

2-DIMENSIONAL PERCOLATION | UNIVERSALITY | NUMBER | SITE PERCOLATION | CLUSTERS | PHYSICS, FLUIDS & PLASMAS | GENERAL DIMENSION | 3-STATE | SCALING CORRECTIONS | PHYSICS, MATHEMATICAL | 3-DIMENSIONAL LATTICES | Physics - Statistical Mechanics

Journal Article

Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 05/2009, Volume 79, Issue 5

Explicit expressions for the concurrence of all positive and trace-preserving ("stochastic") one-qubit maps are presented. Our method allows to construct the...

bifurcation | STATES | entropy | quantum computing | QUANTUM | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | quantum entanglement | OPTICS | stochastic processes | AXIAL SYMMETRY | STOCHASTIC PROCESSES | QUANTUM COMPUTERS | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | QUANTUM ENTANGLEMENT | BIFURCATION | ENTROPY

bifurcation | STATES | entropy | quantum computing | QUANTUM | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | quantum entanglement | OPTICS | stochastic processes | AXIAL SYMMETRY | STOCHASTIC PROCESSES | QUANTUM COMPUTERS | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | QUANTUM ENTANGLEMENT | BIFURCATION | ENTROPY

Journal Article

Quantum Information and Computation, ISSN 1533-7146, 07/2009, Volume 9, Issue 7-8, pp. 0622 - 0627

Let S(rho) = -Tr(rho log rho) be the von Neumann entropy of an N-dimensional quantum state rho and e(2)(rho) the second elementary symmetric polynomial of the...

Quantum Entropy | QUANTUM SCIENCE & TECHNOLOGY | COMPUTER SCIENCE, THEORY & METHODS | PHYSICS, MATHEMATICAL | PHYSICS, PARTICLES & FIELDS

Quantum Entropy | QUANTUM SCIENCE & TECHNOLOGY | COMPUTER SCIENCE, THEORY & METHODS | PHYSICS, MATHEMATICAL | PHYSICS, PARTICLES & FIELDS

Journal Article

Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 0556-2821, 1997, Volume 56, Issue 8, pp. 5194 - 5199

We investigate a generalized nonlinear O(3) sigma model in three space dimensions where the fields are maps from R-3 boolean OR{infinity} to S-2. Such maps are...

SKYRME MODEL | INDEX | K UP PHYSICS, PARTICLES & FIELDS | PHYSICS, PARTICLES & FIELDS

SKYRME MODEL | INDEX | K UP PHYSICS, PARTICLES & FIELDS | PHYSICS, PARTICLES & FIELDS

Journal Article

06/2012

We review some properties of the convex roof extension, a construction used, e.g., in the definition of the entanglement of formation. Especially we consider...

Physics - Quantum Physics

Physics - Quantum Physics

Journal Article

Physical review. E, Statistical, nonlinear, and soft matter physics, ISSN 1539-3755, 11/2006, Volume 74, Issue 5

Journal Article

Physical Review B - Condensed Matter and Materials Physics, ISSN 0163-1829, 06/1997, Volume 55, Issue 23, pp. 15372 - 15374

We estimate the composite-fermion effective mass for a general two-particle potential r(-alpha) using exact diagonalization for polarized electrons in the...

PHYSICS, CONDENSED MATTER | K UK PHYSICS, CONDENSED MATTER | QUANTUM HALL STATES | ENERGY | FILLED LANDAU-LEVEL | GAPS | Physics - Mesoscale and Nanoscale Physics

PHYSICS, CONDENSED MATTER | K UK PHYSICS, CONDENSED MATTER | QUANTUM HALL STATES | ENERGY | FILLED LANDAU-LEVEL | GAPS | Physics - Mesoscale and Nanoscale Physics

Journal Article

03/2009

Physical Review A 79 (2009) 052319 Explicit expressions for the concurrence of all positive and trace-preserving ("stochastic") 1-qubit maps are presented. We...

Physics - Quantum Physics

Physics - Quantum Physics

Journal Article

12/2008

Quantum Information and Computation 9 (2009) 622-627 Let $S(\rho)=- Tr (\rho \log\rho)$ be the von Neumann entropy of an $N$-dimensional quantum state $\rho$...

Physics - Quantum Physics

Physics - Quantum Physics

Journal Article

02/2008

Explicit expressions for the concurrence of all positive and trace-preserving ("stochastic") 1-qubit maps are presented. By a new method we find the relevant...

Physics - Quantum Physics

Physics - Quantum Physics

Journal Article

Computer Physics Communications, ISSN 0010-4655, 2002, Volume 147, Issue 1, pp. 435 - 438

We use a star-graph expansion technique to compute high-temperature series for the free energy and susceptibility of random-bond q-state Potts models on...

Quenched random disorder | High-temperature series expansions | Star graphs | Bond-diluted Ising model

Quenched random disorder | High-temperature series expansions | Star graphs | Bond-diluted Ising model

Journal Article

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, ISSN 1063-651X, 02/2003, Volume 67, Issue 2, pp. 261181 - 261189

We derive high-temperature series expansions for the free energy and the susceptibility of random-bond q-state Potts models on hypercubic lattices using a...

ISING FERROMAGNET | PHYSICS, FLUIDS & PLASMAS | SERIES ANALYSIS | SYSTEMS | CRITICAL-BEHAVIOR | IMPURITIES | PHYSICS, MATHEMATICAL

ISING FERROMAGNET | PHYSICS, FLUIDS & PLASMAS | SERIES ANALYSIS | SYSTEMS | CRITICAL-BEHAVIOR | IMPURITIES | PHYSICS, MATHEMATICAL

Journal Article

02/2005

Condens. Matter Phys. 8(2005)59-74 We discuss recently generated high-temperature series expansions for the free energy and the susceptibility of random-bond...

Journal Article

Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 0556-2821, 2000, Volume 61, Issue 8, pp. 1 - 9

Phys.Rev.D61:085008,2000 The vacuum energy of a scalar field in a spherically symmetric background field is considered. Based on previous work...

Physics - High Energy Physics - Theory

Physics - High Energy Physics - Theory

Journal Article

Physical Review B - Condensed Matter and Materials Physics, ISSN 0163-1829, 11/1997, Volume 56, Issue 19, pp. 12116 - 12119

Journal Article

Condensed Matter Physics, ISSN 1607-324X, 2005, Volume 8, Issue 1, pp. 59 - 74

We discuss recently generated high-temperature series expansions for the free energy and the susceptibility of random-bond q-state Potts models on hypercubic...

High-temperature series expansions | Effective critical exponents | Quenched disorder | Random Potts models | PHYSICS, CONDENSED MATTER | effective critical exponents | 1ST-ORDER PHASE-TRANSITIONS | quenched disorder | IMPURITIES | CRITICAL EXPONENTS | MAGNET | random Potts models | high-temperature series expansions | DIFFERENTIAL APPROXIMANTS | ISING-MODEL | SYSTEMS | LATTICES | CRITICAL-BEHAVIOR | andom Potts models

High-temperature series expansions | Effective critical exponents | Quenched disorder | Random Potts models | PHYSICS, CONDENSED MATTER | effective critical exponents | 1ST-ORDER PHASE-TRANSITIONS | quenched disorder | IMPURITIES | CRITICAL EXPONENTS | MAGNET | random Potts models | high-temperature series expansions | DIFFERENTIAL APPROXIMANTS | ISING-MODEL | SYSTEMS | LATTICES | CRITICAL-BEHAVIOR | andom Potts models

Journal Article

09/1997

Phys. Rev. B56(1997)12116-12119 We prove that for a hard core interaction the ground state spin polarization in the low Zeeman energy limit is given by...

Physics - Mesoscale and Nanoscale Physics | Physics - Quantum Gases | Physics - Disordered Systems and Neural Networks | Physics - Other Condensed Matter | Physics - Strongly Correlated Electrons | Physics - Soft Condensed Matter | Physics - Superconductivity | Physics - Statistical Mechanics | Physics - Materials Science

Physics - Mesoscale and Nanoscale Physics | Physics - Quantum Gases | Physics - Disordered Systems and Neural Networks | Physics - Other Condensed Matter | Physics - Strongly Correlated Electrons | Physics - Soft Condensed Matter | Physics - Superconductivity | Physics - Statistical Mechanics | Physics - Materials Science

Journal Article

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