Abstract:  Dark matter that interacts with the standard model (SM) through the “neutrino portal” is a possibility that is relatively less well studied than other scenarios. In such a setup, the dark matter communicates with the SM primarily through its interactions with neutrinos. In this talk, I will motivate neutrino portal dark matter…

Since the discovery of the Higgs boson in 2012, the experimental program at the LHC has started to explore previously unreachable kinematical regimes, where potentially new heavy particles can be produced. The ATLAS and CMS ex- periments can search for new physics in a wide range of final states with the highest sensitivity to date. Among all…

Conformal invariance allows additional unique parity-odd tensor-structures for three-point functions involving the stress tensor, T, and a conserved U(1) current, j, in 2+1 dimensional conformal field theories that violate parity, apart from the usual parity even structures. Following the conformal collider physics setup of Hofman and Maldacena…

Two types of interactions commonly drive new emergent phenomena beyond textbook band theory in solids: electron correlation and spin orbit coupling.   The first, born from Mott’s observation that strong electron correlation can drive a system on the verge of being an insulator, has excited the condensed matter community over the past…

I will give an overview of the integrability-based approach to study correlation functions in planar N=4 SYM. The basic strategy is to "divide and conquer": We decompose the correlators of single-trace operators into fundamental objects called hexagon form factors, and compute each hexagon form factor by using integrability. I will firstdiscuss…

Abstract: 

I will describe a few recent results and new directions in searching for the nature of dark matter as a particle with astronomical observations and with cosmic ray measurements.

I will present a general argument for the local bound on the null-null component of the stress tensor in a QFT called the Quantum Null Energy Condition. The argument involves the study of correlation functions of operators undergoing modular evolution associated to sub-regions of the QFT. Causality constrains this modular evolution which in AdS…

Abstract:  There is a long history to the idea that transport may be subject to fundamental constraints. I will argue that variants of these ideas offer promising ways to think about non-quasiparticle transport. I will discuss both proposed lower and upper bounds on transport, and I will suggest that such bounds may address long-standing…

The weak gravity conjecture (WGC) is a proposed bound on the mass of a charged particle in a consistent low-energy effective theory. We study quantum corrections to black hole entropy arising from a charged but WGC-violating scalar. In particular, we study the laws of black hole thermodynamics, and identify several surprising features which…

A complete and universal equivalence between soft theorems inquantum field theories and asymptotic symmetries in flat spacetimes has recently emerged. We review these developments and show that the equivalence also extends to theories with higher derivative interactions.

"Aspects of scale invariance in Physics and Biology"

We use quantum dots (QDs) formed by crystal-phase tuning during epitaxial growth of InAs nanowires as a starting point to realize and electrically  characterize two different types of parallel-coupled quantum dots; electron-hole QDs and electron-electron QDs. In the InAs nanowire, two thin  segments of wurtzite (WZ) in otherwise zinc blende (ZB…

During its second run of operation, the LHC delivered proton-proton collisions at a centre-of-mass energy of 13 TeV with a peak  instantaneous luminosity of 151034cm−2s−1, almost double the peak luminosity reached during LHC Run1 and far larger than the design value.  The upgraded CMS Level-1 trigger is designed to improve the performance at…

The doping of an antiferromagnet can lead to complex physics related to high temperature superconductivity. In one dimension, however, the competition between spin and density sectors is largely absent due to the separation of the spin and density modes at low energy.

A quantum gas microscope for ultracold fermions in optical lattices…

As global data accumulation increases at an ever-growing rate, further miniaturization and the decrease of power consumption have the highest priority in the development of our information and communication technologies. Memory technologies available today offer a variety of methods; all have advantages but also suffer from various drawbacks…

TITLE: The Dark Energy Survey 

ABSTRACT: The Dark Energy Survey Collaboration built the Dark Energy Camera (DECam), a 3 square degree, 570 Megapixel CCD camera for the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory in Chile. DECam was installed on the telescope in 2012 and is being used to carry out a 5 year,…