Publications associées à Suite exacte

Exact Diagonalization of Heisenberg SU(N) Models

Building on advanced results on permutations, we show that it is possible to construct, for each irreducible representation of SU(N), an orthonormal basis labeled by the set of standard Young tableaux in which the matrix of the Heisenberg SU(N) model (the ...

2014

Realization of higher Wess-Zumino-Witten models in spin chains

Frédéric Mila, Salvatore Manmana, Frédéric Alexis Michaud

Building on the generalization of the exactly dimerized Majumdar-Ghosh ground state to arbitrary spin S for the Heisenberg chain with a three-site term (Si-1 . S-i)(S-i . Si+1) + H.c., we use density-matrix renormalization group simulations and exact diago ...

2013

A DC power flow extension

Maher Kayal, Theodoros Kyriakidis

In this work an extension of the well-known DC power flow method is presented. A normal DC power flow of the system is executed to determine voltage angles and a novel derivation of voltage amplitudes is devised. The latter is rigorously formulated and eig ...

IEEE2013

A DC Power Flow Extension

Maher Kayal, Theodoros Kyriakidis

Ieee2013

Competing states in the SU(3) Heisenberg model on the honeycomb lattice: Plaquette valence-bond crystal versus dimerized color-ordered state

Frédéric Mila, Karlo Penc, Miklos Lajko

Conflicting predictions have been made for the ground state of the SU(3) Heisenberg model on the honeycomb lattice: Tensor network simulations found a plaquette order [Zhao et al., Phys. Rev. B 85, 134416 (2012)], where singlets are formed on hexagons, whi ...

2013

Heisenberg uncertainty principle as a probe of entanglement entropy: Application to superradiant quantum phase transitions

Pierre Marcel Nataf

Quantum phase transitions are often embodied by the critical behavior of purely quantum quantities such as entanglement or quantum fluctuations. In critical regions, we underline a general scaling relation between the entanglement entropy and one of the mo ...

Amer Physical Soc2012

Competition between two- and three-sublattice ordering for S=1 spins on the square lattice

Frédéric Mila, Karlo Penc, Tamás András Tóth

We provide strong evidence that the S = 1 bilinear-biquadratic Heisenberg model with nearest-neighbor interactions on the square lattice possesses an extended three-sublattice phase induced by quantum fluctuations for sufficiently large biquadratic interac ...

2012

Tracking Multiple People under Global Appearance Constraints

Pascal Fua, François Fleuret, Jérôme Berclaz, Horesh Beny Ben Shitrit

In this paper, we show that tracking multiple people whose paths may intersect can be formulated as a convex global optimization problem. Our proposed framework is designed to exploit image appearance cues to prevent identity switches. Our method is effect ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Tracking Multiple Objects under Global Appearance Constraints

Pascal Fua, François Fleuret, Jérôme Berclaz, Horesh Beny Ben Shitrit

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

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Suite exacte

Exact Diagonalization of Heisenberg SU(N) Models

Realization of higher Wess-Zumino-Witten models in spin chains

A DC power flow extension

A DC Power Flow Extension

Competing states in the SU(3) Heisenberg model on the honeycomb lattice: Plaquette valence-bond crystal versus dimerized color-ordered state

Heisenberg uncertainty principle as a probe of entanglement entropy: Application to superradiant quantum phase transitions

Effective spin couplings in the Mott insulator of the honeycomb lattice Hubbard model

Competition between two- and three-sublattice ordering for S=1 spins on the square lattice

Tracking Multiple People under Global Appearance Constraints

Tracking Multiple Objects under Global Appearance Constraints

Graph Chatbot

Chattez avec Graph Search

Competing states in the SU(3) Heisenberg model on the honeycomb lattice: Plaquette valence-bond crystal versus dimerized color-ordered state

Exact Diagonalization of Heisenberg SU(N) Models

Realization of higher Wess-Zumino-Witten models in spin chains

A DC Power Flow Extension

A DC power flow extension

Heisenberg uncertainty principle as a probe of entanglement entropy: Application to superradiant quantum phase transitions

Effective spin couplings in the Mott insulator of the honeycomb lattice Hubbard model

Competition between two- and three-sublattice ordering for S=1 spins on the square lattice

Tracking Multiple People under Global Appearance Constraints

Tracking Multiple Objects under Global Appearance Constraints