Events Archive

FPO

FPO - Felix Borjans - "Long-Range Coupling of Electron Spins"

Thu, Jan 28, 2021, 9:30 am

Long-Range Coupling of Electron Spins In the quest towards harnessing quantum systems to study quantum physical phenomena and eventually build a universal quantum computer, multiple promising platforms have emerged.

FPO - Trithep Devakul - "Subdimensional Topological Quantum Phases of Matter"

Tue, Dec 15, 2020, 2:00 pm

This Dissertation concerns phases of matter with various subdimensional'' properties. We start with topologically ordered phases with subdimensional properties. This includes a discussion of fracton topologically ordered phases, resonating valence plaquette phases, and floating topological phases.

FPO - Xiaowen Chen - "Statistical Physics Approaches to Collective Behavior in Networks of Neurons"

Thu, Sep 24, 2020, 2:00 pm

In recent years, advances in experimental techniques have allowed for the first time simultaneous measurements of many interacting components in living systems at almost all scales, making now an exciting time to search for physical principles of collective behavior in living systems.

FPO - Yaqiong Li - "Probing the Cosmic Microwave Background Radiation Using Large Superconducting Detector Arrays"

Thu, Sep 24, 2020, 9:00 am
The discovery and measurements of the Cosmic Microwave Background (CMB) radiation have laid the foundation of the current cosmological model, in which the universe is primarily composed of dark energy and dark matter.

FPO - Laura Chang - Dark Matter in the Milky Way

Fri, Sep 4, 2020, 11:00 am

We have entered a data-driven era of astrophysics and cosmology, providing a wealth of datasets within which to search for the answers to some of the most fundamental open questions in the physics of our Universe.

FPO - Kelvin Mei - "A Search for Scalar Top Quarks in Final States with High Jet Multiplicity and a Lepton with the CMS detector at the Large Hadron Collider"

Mon, Aug 31, 2020, 3:30 pm

A search is conducted for scalar top quarks decaying in the Full Run II dataset for the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) of 137.2\fbinv collected at a center of mass energy of √s = 14 TeV.

FPO - Tong Gao - Thermal Transport Properties of Quantum Spin Liquid Materials

Fri, Aug 28, 2020, 10:00 am

Abstract Quantum spin liquids(QSL) have fascinated physicists for nearly half a century since Anderson first introduced this concept with his resonating-valence-bond(RVB) idea in 1973. Although many progresses had been made, more challenges emerge from both theoretical and experimental perspectives.

FPO - JaeUk Kim - Hyperuniformity of Point Patterns and Two-Phase Composite Media

Fri, Aug 28, 2020, 10:00 am

This dissertation focuses on the generation of certain special disordered systems, as well as general tools that have been developed to characterize their microstructures. Particular attention is devoted to disordered hyperuniform systems, which are ex- otic amorphous states of matter that lie between crystals and liquids.

FPO - Zheng Ma - "Generation and Structural Characterization of Non-Hyperuniform and Hyperuniform Disordered Systems"

Thu, Aug 27, 2020, 11:30 am

This dissertation focuses on the generation of certain special disordered systems, as well as general tools that have been developed to characterize their microstructures. Particular attention is devoted to disordered hyperuniform systems, which are ex- otic amorphous states of matter that lie between crystals and liquids.

FPO - Jiaqi Jiang "Selected problems in quantum field theory in different dimensions"

Mon, Jul 27, 2020, 10:00 am
This thesis examines quantum field theories in different dimensions.

FPO - Alexey Milekhin - "Quantum mechanical systems with holographic duals"

Fri, Jul 24, 2020, 11:00 am

This thesis is devoted to studying quantum mechanical systems with gravity duals. It is interesting to study holographic correspondence for quantum mechanical systems since we have much more theoretical control over them compared to quantum field theories.

FPO - Justin Ripley - "General relativity and its classical modification in gravitational collapse"

Wed, Jul 1, 2020, 11:00 am

In this thesis, we describe numerical spherical collapse solutions to a modified gravity'' theory, Einstein dilaton Gauss-Bonnet (EdGB) gravity.

FPO - Jingjing Lin "Transport Properties of Topological Chalcogenides under Pressure"

Tue, Jun 30, 2020, 2:00 pm

Magnetic breakdown refers to the tunneling of electrons between distinct orbitals beyond a critical magnetic field.

FPO - Luca Iliesiu - "On Two-Dimensional Quantum Gravity"

Fri, Jun 26, 2020, 1:00 pm

his thesis explores topics in two-dimensional quantum gravity, focusing on the specific model of Jackiw-Teitelboim (JT) gravity and its relation to higher-dimensional black holes (BHs).

FPO - Sanjay Moudgalya - "New Forms of Ergodicity Breaking in Quantum Many-Body Systems"

Thu, Jun 25, 2020, 11:00 am

Generic isolated interacting quantum systems are believed to be ergodic, i.e. any simple initial state evolves to a thermal state at late-times, forming a barrier to the protection of quantum information. A sufficient condition for the thermalization of initial states in an isolated quantum system is the Eigenstate Thermalization Hypothesis (...

FPO - Yonglong Xie - "Visualizing emergent phenomena in quantum materials: from Majorana zero mode to many-body correlations"

Tue, Sep 17, 2019, 10:30 am

Topology and correlation, fundamental ingredients that often dictate the ground states of quantum matter, leave distinct local electronic fingerprints that can be detected with scanning tunneling microscopy (STM).

FPO - Peter Brown - "Probing dynamical quantities in the 2D Fermi-Hubbard model with quantum gas microscopy"

Thu, Aug 1, 2019, 2:00 pm

The recent development of fermionic quantum gas microscopes has enabled studies of cold atom Fermi-Hubbard systems with single-site resolution, revealing a variety of interesting phenomena in regimes which are difficult to access with existing theory techniques.

FPO - Jiming Sun - "High Pressure Superionic Ice Phase Diagram"

Thu, Feb 7, 2019, 1:00 pm

Water is one of the most common substances in the universe and is found in many different phases.