Thursday, 7 December, 2017
Rahul Pandharipande

Cohomological field theories (CohFTs) were defined in the mid 1990s by Kontsevich and Manin to capture the formal properties of the virtual fundamental class in Gromov-Witten theory. A beautiful...

Wednesday, 6 December, 2017
Alina Marian, Dragos Oprea, Rahul Pandharipande

Let S be a nonsingular projective K-trivial surface, and let V be a vector bundle on S of rank s. We calculate the top Segre class of the tautological bundle over the Hilbert scheme of n points...

Wednesday, 6 December, 2017
Hugo Duminil-Copin, Marcin Lis

We relate the planar random current representation introduced by Griffiths, Hurst and Sherman to the dimer model. More precisely, we provide a measure-preserving map between double random...

Sunday, 3 December, 2017
Edvin G. Idrisov, Ivan P. Levkivskyi, Eugene V. Sukhorukov

We study dephasing in an electronic Mach-Zehnder (MZ) interferometer based on quantum Hall (QH) edge states by a micromiter-sized Ohmic contact embedded in one of its arms. We find that at the...

Phys. Rev. Lett. 121, 026802 (2018)
Thursday, 30 November, 2017
Camille Bonvin, Ruth Durrer, Nima Khosravi, Martin Kunz, Ignacy Sawicki

We compute a general expression for the contribution of vector perturbations to the redshift-space distortion of galaxy surveys. We show that they contribute to the same multipoles of the...

Monday, 20 November, 2017
Matthias R. Gaberdiel, Wei Li, Cheng Peng, Hong Zhang

The affine Yangian of \mathfrak{gl}_1 is known to be isomorphic to {\cal W}_{1+\infty}, the W-algebra that characterizes the bosonic higher spin -- CFT duality. In this paper we propose defining...

Tuesday, 7 November, 2017
Hugo Duminil-Copin, Jhih-Huang Li, Ioan Manolescu

We show that the canonical random-cluster measure associated to isoradial graphs is critical for all q \geq 1. Additionally, we prove that the phase transition of the model is of the same type...

Monday, 6 November, 2017
Gabriel Cuomo, Anton de la Fuente, Alexander Monin, David Pirtskhalava, Riccardo Rattazzi

We calculate the scaling dimensions of operators with large global charge and spin in 2+1 dimensional conformal field theories. By the state-operator correspondence, these operators correspond...

Tuesday, 31 October, 2017
Vieri Mastropietro, Marcello Porta

The Drude weight is a central quantity for the transport properties of quantum spin chains. The canonical definition of Drude weight is directly related to Kubo formula of conductivity. However...

Monday, 30 October, 2017
Jean-Pierre Eckmann, C. Eugene Wayne

We study metastable motions in weakly damped Hamiltonian systems. These are believed to inhibit the transport of energy through Hamiltonian, or nearly Hamiltonian, systems with many degrees of...

Thursday, 26 October, 2017
Christian Brennecke, Phan Thành Nam, Marcin Napiórkowski, Benjamin Schlein

We consider a system of N bosons interacting through a singular two-body potential scaling with N and having the form N^{3\beta-1} V (N^\beta x), for an arbitrary parameter \beta \in (0,1). We...

Thursday, 19 October, 2017
Andrea Agazzi, Amir Dembo, Jean-Pierre Eckmann

In an earlier paper, we proved the validity of large deviations theory for the particle approximation of quite general chemical reaction networks (CRNs). In this paper, we present a more...