Results 31 to 40 of about 1,143 (82)

Cosmological Dark Energy: Prospects for a Dynamical Theory [PDF]

, 2006
We present an approach to the problem of vacuum energy in cosmology, based on dynamical screening of Lambda on the horizon scale. We review first the physical basis of vacuum energy as a phenomenon connected with macroscopic boundary conditions, and the ...
't Hooft G, Ambjørn J, Ambjørn J, Antoniadis I Mazur P O Mottola E, Antoniadis I Mottola E, Bardeen W A, Beers B L, Bell J S, Berezinskii V I, Birrell N D, Capper D, Casimir H B G, Catterall S, Cattoen C, Cheng T P, de Sitter W, Donoghue J F, Duff M, Eddington A S, Einstein A, Emil Mottola, Enz C P, Gliner E B, Higuchi A, Ignatios Antoniadis, Ishibashi A, Le Bellac M, Liddle A R, Mazur P O, Mazur P O, Mazur P O Mottola E, Mottola E, Nernst W, Padmanabhan T, Pauli W, Pawel O Mazur, Peebles P J E, Polyakov A M, Sakharov A D, Spergel D N, Straumann N, Unruh W, Visser M, Weinberg S, Weinberg S, Zel'dovich Y B   +45 more
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Scalar-Tensor Quantum Gravity in Two Dimensions

, 1992
We discuss some classical and quantum properties of 2d gravity models involving metric and a scalar field. Different models are parametrized in terms of a scalar potential. We show that a general Liouville-type model with exponential potential and linear
A.A. Tseytlin, Banks, Banks, Bilal, Burwick, Callan, Callan, Chamseddine, Cooper, D'Hoker, Das, David, David, de Alwis, Distler, Elitzur, J.G. Russo, Jackiw, Mandal, Marnelius, Mazzitelli, McGuigan, Odintsov, Odintsov, Polchinski, Strominger, Teitelboim, Tseytlin, Verlinde, Witten, Yoneya   +30 more
core   +1 more source

Threshold model and the latest NA50 data on $J/\psi$ suppression in Pb+Pb collisions

, 2003
Using the QGP motivated threshold model, where all the $J/\psi$'s are suppressed above a threshold density, we have analyzed the latest version of the NA50 data on the centrality dependence of the $J/\psi$ over Drell-Yan ratio.
Chaudhuri, A. K.
core   +1 more source

Fermion Pairing and the Scalar Boson of the 2D Conformal Anomaly [PDF]

, 2014
We analyze the phenomenon of fermion pairing into an effective boson associated with anomalies and the anomalous commutators of currents bilinear in the fermion fields.
Blaschke, Daniel N., Carballo-Rubio, Raúl, Mottola, Emil   +2 more
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Framing Anomaly in the Effective Theory of Fractional Quantum Hall Effect

, 2015
We consider the geometric part of the effective action for Fractional Quantum Hall Effect (FQHE). It is shown that accounting for the framing anomaly of the quantum Chern-Simons theory is essential to the obtain correct gravitational linear response ...
Abanov, Alexander G., Cho, Gil Young, Fradkin, Eduardo, Gromov, Andrey, You, Yizhi   +4 more
core   +1 more source

Conformal Sector in $D=6$ Quantum Gravity

, 1994
We discuss the conformal factor dynamics in $D=6$. Accepting the proposal that higher-derivative dimensionless terms in the anomaly-induced effective action may be dropped, we obtain a superrenormalizable (like in $D=4$) effective theory for the ...
Odintsov, Sergei D., Romeo, August
core   +1 more source

Anomalous Hall effect in dense QCD matter

, 2018
In this letter, we investigate the anomalous Hall effect in dense QCD matter. When the dual chiral density wave which is the spatially modulated chiral condensate appears in the medium, it gives rise to two Weyl points to the single-particle energy ...
Kashiwa, Kouji, Tatsumi, Toshitaka, Yoshiike, Ryo   +2 more
core   +1 more source

Superfluid Kubo Formulas from Partition Function [PDF]

, 2013
Linear response theory relates hydrodynamic transport coefficients to equilibrium retarded correlation functions of the stress-energy tensor and global symmetry currents in terms of Kubo formulas.
Chapman, Shira, Hoyos, Carlos, Oz, Yaron
core   +2 more sources

Derivation of Electroweak Chiral Lagrangian from One Family Technicolor Model

, 2009
Based on previous studies deriving the chiral Lagrangian for pseudo scalar mesons from the first principle of QCD in the path integral formalism, we derive the electroweak chiral Lagrangian and dynamically compute all its coefficients from the one family
HONG-HAO ZHANG, KAI-XI FENG, QING WANG, SHAO-ZHOU JIANG, Wang X. L., Wang X. L.   +5 more
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Topological Defects in QCD at large Baryon Density and/or large $N_c$

, 2005
The main leitmotiv of the present talk is analysis of different topological objects such as strings and domain walls in QCD. As it is well known, the standard model in general (and QCD in particular) does not support any kind of such objects due to some ...
Zhitnitsky, Ariel R.
core   +1 more source