Wednesday, 19 June, 2019
Joan Elias Miro, Andrea L. Guerrieri, Aditya Hebbar, Joao Penedones, Pedro Vieira

We bootstrap the S-matrix of massless particles in unitary, relativistic two dimensional quantum field theories. We find that the low energy expansion of such S-matrices is strongly constrained...

Thursday, 13 June, 2019
Alain-Sol Sznitman

We investigate certain large deviation asymptotics concerning random interlacements in Z^d, d bigger or equal to 3. We find the principal exponential rate of decay for the probability that the...

Tuesday, 11 June, 2019
Grigory Mikhalkin, Johannes Rau

To every rational complex curve C \subset (\mathbf{C}^\times)^n we associate a rational tropical curve \Gamma \subset \mathbf{R}^n so that the amoeba \mathcal{A}(C) \subset \mathbf{R}^n of C is...

Sunday, 9 June, 2019
Jürg Fröhlich

To begin with, some of the conundrums concerning Quantum Mechanics and its interpretation(s) are recalled. Subsequently, a sketch of the "ETH-Approach to Quantum Mechanics" is presented. This...

Monday, 3 June, 2019
Giulio Ciraolo, Alessio Figalli, Alberto Roncoroni

Given n \geq 2 and 1<p<n, we consider the critical p-Laplacian equation \Delta_p u + u^{p^*-1}=0, which corresponds to critical points of the Sobolev inequality. Exploiting the moving...

Thursday, 30 May, 2019
Giovanni Felder, David Kazhdan, Alexander Polishchuk

The supermeasure whose integral is the genus g vacuum amplitude of superstring theory is potentially singular on the locus in the moduli space of supercurves where the corresponding even theta-...

Wednesday, 29 May, 2019
Enea Di Dio, Ruth Durrer, Giuseppe Fanizza, Giovanni Marozzi

We investigate the weak lensing corrections to the CMB polarization anisotropies. We concentrate on the effect of rotation and show that the rotation of polarisation is a true physical effect...

Phys. Rev. D 100, 043508 (2019)
Tuesday, 28 May, 2019
Artur Avila, Giovanni Forni, Davide Ravotti, Corinna Ulcigrai

We consider irrational nilflows on any nilmanifold of step at least 2. We show that there exists a dense set of smooth time-changes such that any time-change in this class which is not...

Thursday, 23 May, 2019
Marcos Marino, Tomas Reis

An important non-perturbative effect in quantum physics is the energy gap of superconductors, which is exponentially small in the coupling constant. A natural question is whether this effect can...

Thursday, 23 May, 2019
Marcos Marino, Tomas Reis

We present a systematic procedure to extract the perturbative series for the ground state energy density in the Lieb-Liniger and Gaudin-Yang models, starting from the Bethe ansatz solution. This...

Wednesday, 22 May, 2019
Jaiyul Yoo, Ermis Mitsou, Yves Dirian, Ruth Durrer

The background photon temperature \bar T is one of the fundamental cosmological parameters. Despite its significance, \bar T has never been allowed to vary in the data analysis, owing to the...

Wednesday, 22 May, 2019
Andrea Manenti, Andreas Stergiou, Alessandro Vichi

We explore consequences of the Averaged Null Energy Condition (ANEC) for scaling dimensions \Delta of operators in four-dimensional \mathcal{N}=1 superconformal field theories. We show that in...