Dona, Pietro Fanizza, Marco Martin-Dussaud, Pierre Speziale, Simone

We study the semiclassical limit of a class of invariant tensors for infinite-dimensional unitary representations of $\mathrm{SL}(2,\mathbb{C})$ of the principal series, corresponding to generalized Clebsch-Gordan coefficients with $n\geq3$ legs. We find critical configurations of the quantum labels with a power-law decay of the invariants. They de...

Ritz-Zwilling, Anna Fuchs, Jean-Noël Vidal, Julien

We study the Wegner-Wilson loops in the string-net model of Levin and Wen in the presence of a string tension. The latter is responsible for a phase transition from a topological deconfined phase (weak tension) to a trivial confined phase (strong tension). We analyze the behavior of all Wegner-Wilson loops in both limiting cases for an arbitrary in...

Elander, Daniel Piai, Maurizio Roughley, John

We identify a parametrically light dilaton by studying the perturbations of metastable vacua along a branch of regular supergravity backgrounds that are dual to four-dimensional confining field theories. The branch includes also stable and unstable solutions. The former encompass, as a special case, the geometry proposed by Witten as a holographic ...

Lahoche, Vincent Ousmane Samary, Dine Tamaazousti, Mohamed

The principal component analysis is one of the most popular methods aiming to extract relevant features from very large datasets, focusing on the eigenvalues of the covariance matrix. The large scale behavior of systems having a large number of interacting degrees of freedom, are suitably described using renormalization group, from non-Gaussian dis...

Martinovic, Katarina Meyers, Patrick M. Sakellariadou, Mairi Christensen, Nelson

The recent Advanced LIGO and Advanced Virgo joint observing runs have not claimed a stochastic gravitational-wave background detection, but one expects this to change as the sensitivity of the detectors improves. The challenge of claiming a true detection will be immediately succeeded by the difficulty of relating the signal to the sources that con...

Duminil-Copin, Hugo Garban, Christophe Tassion, Vincent

In this paper, we investigate the behaviour of statistical physics models on a book with pages that are isomorphic to half-planes. We show that even for models undergoing a continuous phase transition on $\mathbb Z^2$, the phase transition becomes discontinuous as soon as the number of pages is sufficiently large. In particular, we prove that the I...

Goutéraux, Blaise Mefford, Eric
Published in
Journal of High Energy Physics

The low energy and finite temperature excitations of a d + 1-dimensional system exhibiting superfluidity are well described by a hydrodynamic model with two fluid flows: a normal flow and a superfluid flow. In the vicinity of a quantum critical point, thermodynamics and transport in the system are expected to be controlled by the critical exponents...

Inkof, Gian Andrea Küppers, Joachim M. C. Link, Julia M. Goutéraux, Blaise Schmalian, Jörg
Published in
Journal of High Energy Physics

The transport behavior of strongly anisotropic systems is significantly richer compared to isotropic ones. The most dramatic spatial anisotropy at a critical point occurs at a Lifshitz transition, found in systems with merging Dirac or Weyl point or near the superconductor-insulator quantum phase transition. Previous work found that in these system...

Sartini, Francesco Geiller, Marc

It has been suggested that the homogeneous black hole interior spacetime, when quantized following the techniques of loop quantum cosmology, has a resolved singularity replaced by a black-to-white hole transition. This result has however been derived so far only using effective classical evolution equations, and depends on details of the so-called ...

Kim, Jaewon Altman, Ehud Cao, Xiangyu

We introduce a family of Gross-Neveu-Yukawa models with a large number of fermion and boson flavors as higher dimensional generalizations of the Sachdev-Ye-Kitaev model. The models may be derived from local lattice couplings and give rise to Lorentz invariant critical solutions in 1+1 and 2+1 dimensions. These solutions imply anomalous dimensions o...