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Hamiltonian tomography for many-body systems
We show that a generic many-body Hamiltonian can be uniquely reconstructed from a single pair of initial-final states under the unitary time evolution. Interesting it is, this method is not...
Nov 20, 2019
Perimeter among top winners at CCAE awards
The ceremony looked a lot different this year, but the results were much the same, as Perimeter Institute was recognized for its efforts in media relations, communications, and advancement by...
Weak Cosmic Censorship in Einstein-Scalar theory in flat 4D
We present a plausible counterexample to the weak cosmic censorship conjecture in four-dimensional Einstein-Scalar theory with asymptotically flat boundary conditions. Our setup stems from the analysis of the massive Klein-Gordon...
Nov 21, 2019
Floquet quantum criticality
It has recently been shown that quenched randomness, via the phenomenon of many-body localization, can stabilize dynamical phases of matter in periodically driven (Floquet) systems, with one example being discrete...
Nov 21, 2019
Cosmology from Condensed Matter Physics: A study of out-of-equilibrium physics
In this work, our prime focus is to study the one to one correspondence between the conduction phenomena in electrical wires with impurity and the scattering events responsible for particle...
Nov 21, 2019
Searching for new physics with the 21-cm line
I will describe how current and upcoming 21-cm measurements during cosmic dawn can probe a plethora of dark-matter and dark-energy models. This era saw the formation of the first stars...
Nov 22, 2019
Revivals imply quantum many-body scars
We derive general results relating revivals in the dynamics of quantum many-body systems to the entanglement properties of energy eigenstates. For a D-dimensional lattice system of N sites initialized in...
Nov 22, 2019
Modeling the pseudogap state in cuprates: quantum disordered pair density wave
I will briefly review the pseudogap phenomenology in high Tc cuprate superconductor, especially the recent experiments, and propose a unified picture of the phenomenology under only one assumption: the fluctuating...
Nov 25, 2019
Cosmology and cosmography from peculiar velocities in the nearby Universe
Maps of the mass density field can be used to predict peculiar velocities point-by-point. The comparison of these predictions to peculiar velocity data can be used to determine the cosmological...
Nov 26, 2019
Bootstrapping Inflationary Correlators
The central idea of the bootstrap philosophy is to constrain observables directly from consistency conditions alone, bypassing the intricacies of the Lagrangian formalism. In this talk, I will adopt this...
Nov 26, 2019