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19922026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2008Show all

74 papers · 1 filter

cond-mat.other2008★ 249 cited

Fermionized photons in an array of driven dissipative nonlinear cavities

Iacopo Carusotto, Dario Gerace, Hakan Tureci +3

We theoretically investigate the optical response of a one-dimensional array of strongly nonlinear optical microcavities. When the optical nonlinearity is much larger than both los…

gr-qc2008★ 47 cited

Distinguished quantum states in a class of cosmological spacetimes and their Hadamard property

Claudio Dappiaggi, Valter Moretti, Nicola Pinamonti

In a recent paper, we proved that a large class of spacetimes, not necessarily homogeneous or isotropous and relevant at a cosmological level, possesses a preferred codimension one…

cond-mat.mtrl-sci2008★ 1k cited

Observation of Superfluidity of Polaritons in Semiconductor Microcavities

A. Amo, J. Lefrere, S. Pigeon +6

One of the most striking manifestations of quantum coherence in interacting boson systems is superfluidity. Exciton-polaritons in semiconductor microcavities are two-dimensional co…

math-ph2008★ 45 cited

Symmetric and skew-symmetric weight functions in perturbation models of 2D interfacial cracks

A. Piccolroaz, G. Mishuris, A. B. Movchan

In this paper we address the vector problem of a 2D half-plane interfacial crack loaded by a general asymmetric distribution of forces acting on its faces. It is shown that the gen…

cond-mat.mes-hall2008★ 12 cited

Effective Field Theory for the Quantum Electrodynamics of a Graphene Wire

P. Faccioli, E. Lipparini

We study the low-energy quantum electrodynamics of electrons and holes, in a thin graphene wire. We develop an effective field theory (EFT) based on an expansion in p/p_T, where p_…

math.GR2008

An application of the O'Nan-Scott theorem to the group generated by the round functions of an AES-like cipher

A. Caranti, F. Dalla Volta, M. Sala

In a previous paper, we had proved that the permutation group generated by the round functions of an AES-like cipher is primitive. Here we apply the O'Nan Scott classification of p…

gr-qc2008★ 7 cited

Topological features of massive bosons on two dimensional Einstein space-time

Romeo Brunetti, Lorenzo Franceschini, Valter Moretti

In this paper we tackle the problem of constructing explicit examples of topological cocycles of Roberts' net cohomology, as defined abstractly by Brunetti and Ruzzi. We consider t…

cond-mat.other2008★ 23 cited

Probing the excitation spectrum of nonresonantly pumped polariton condensates

Michiel Wouters, Iacopo Carusotto

We propose a four wave mixing experiment to probe the elementary excitation spectrum of a non-equilibrium Bose-Einstein condensate of exciton-polaritons under non-resonant pumping.…

physics.comp-ph2008★ 263 cited

Efficient, High Accuracy ADER-WENO Schemes for Hydrodynamics and Divergence-Free Magnetohydrodynamics

Dinshaw S. Balsara, Tobias Rumpf, Michael Dumbser +1

The present paper introduces a class of finite volume schemes of increasing order of accuracy in space and time for hyperbolic systems that are in conservation form. This paper spe…

hep-ph2008★ 9 cited

CP-Violation in Low-Energy Photon-Photon Interactions

R. Millo, P. Faccioli

CP-violation in the loop-mediated photon-photon interactions would modify the birefringence of the quantum vacuum. We discuss the implications of this effect on the PVLAS-Phase II…

nucl-th2008★ 46 cited

Role of final state interaction and of three-body force on the longitudinal response function of 4He

Sonia Bacca, Nir Barnea, Winfried Leidemann +1

We present an ab-initio calculation of the longitudinal electron scattering response function off 4He with two- and three-nucleon forces and compare to experimental data. The full…

cond-mat.other2008★ 18 cited

Density profiles of polarized Fermi gases confined in harmonic traps

G. Bertaina, S. Giorgini

On the basis of the phase diagram of the uniform system we calculate the density profiles of a trapped polarized Fermi gas at zero temperature using the local density approximation…

cond-mat.stat-mech2008★ 26 cited

Density and spin response function of a normal Fermi gas at unitarity

S. Stringari

Using Landau theory of Fermi liquids we calculate the dynamic response of both a polarized and unpolarized normal Fermi gas at zero temperature in the strongly interacting regime o…

math.AG2008★ 2 cited

Postulation of general quartuple fat point schemes in P^3

Edoardo Ballico, Maria Chiara Brambilla

We study the postulation of a general union of double, triple, and quartuple points of . We prove that has the expected postulation in degree , using…

gr-qc2008★ 98 cited

Initial and final de Sitter universes from modified gravity

G. Cognola, E. Elizalde, S. D. Odintsov +2

Viable models of modified gravity which satisfy both local as well as cosmological tests are investigated. It is demonstrated that some versions of such highly non-linear models ex…

gr-qc2008★ 4 cited

Stability in Generalized Modified Gravity

Sergio Zerbini

The stability issue of a large class of modified gravitational models is discussed with particular emphasis to de Sitter solutions. Three approaches are briefly presented and the g…

cond-mat.dis-nn2008★ 16 cited

Ergodicity breaking in strong and network-forming glassy system

S. Caponi, M. Zanatta, A. Fontana +5

The temperature dependence of the non-ergodicity factor of vitreous GeO, , as deduced from elastic and quasi-elastic neutron scattering experiments, is analyzed. The…

math.AG2008★ 23 cited

Quotients of products of curves, new surfaces with and their fundamental groups

Ingrid Bauer, Fabrizio Catanese, Fritz Grunewald +1

The first main purpose of this paper is to contribute to the existing knowledge about the complex projective surfaces of general type with and their moduli spaces,…

cond-mat.other2008★ 90 cited

Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations

S. Riedl, E. R. Sanchez Guajardo, C. Kohstall +6

We present detailed measurements of the frequency and damping of three different collective modes in an ultracold trapped Fermi gas of Li atoms with resonantly tuned interactio…

cond-mat.other2008★ 136 cited

Quantum phases of a Two-Dimensional Dipolar Fermi Gas

G. M. Bruun, E. Taylor

We examine the superfluid and collapse instabilities of a quasi two-dimensional gas of dipolar fermions aligned by an orientable external field. It is shown that the interplay betw…

cond-mat.other2008★ 37 cited

Probing spatial spin correlations of ultracold gases by quantum noise spectroscopy

G. M. Bruun, Brian M. Andersen, Eugene Demler +1

Spin noise spectroscopy with a single laser beam is demonstrated theoretically to provide a direct probe of the spatial correlations of cold fermionic gases. We show how the generi…

nucl-th2008★ 6 cited

Monte Carlo approach to nuclei and nuclear matter

Stefano Fantoni, Stefano Gandolfi, Alexey Yu. Illarionov +2

We report on the most recent applications of the Auxiliary Field Diffusion Monte Carlo (AFDMC) method. The equation of state (EOS) for pure neutron matter in both normal and BCS ph…

math.PR2008★ 8 cited

Long-time behavior of stochastically perturbed neuronal networks

Stefano Bonaccorsi, Delio Mugnolo

Our investigation is specially motivated by the stochastic version of a common model of potential spread in a dendritic tree. We do not assume the noise in the junction points to b…

cond-mat.supr-con2008★ 5 cited

Gauge approach to the specific heat in the normal state of cuprates

P. A. Marchetti, A. Ambrosetti

Many experimental features of the electronic specific heat and entropy of high Tc cuprates in the normal state, including the nontrivial temperature dependence of the specific heat…