Degree Date: May, 2019
Lucie Tvrznikova's picture
Lucie Tvrznikova
Daniel McKinsey
Postdoctoral Researcher

Lawrence Livermore National Laboratory

Sub-GeV dark matter searches and electric field studies for the LUX and LZ experiments
Abundant evidence from cosmological and astrophysical observations suggests that the Standard Model does not describe 84% of the matter in our universe. The nature of this dark matter (DM) remains a mystery since it has so far eluded detection in the laboratory. To that end, the Large Underground Xenon (LUX) experiment was built to directly observe the interaction of DM with xenon target nuclei. LUX acquired data from April 2013 to May 2016 at the Sanford Underground Research Facility (SURF) in... more
Degree Date: December, 2018
Andrew Gasbarro's picture
Andrew Gasbarro
George Fleming
Postdoctoral Associate

AEC and ITP University of Bern

Studies of Conformal Behavior in Strongly Interacting Quantum Field Theories
In this dissertation, we present work towards characterizing various conformal and nearly-conformal quantum field theories nonperturbatively using a combination of numerical and analytical techniques. A key area of interest is the conformal window of four-dimensional gauge theories with Dirac fermions and its potential application to BSM model building. We advocate a research program in which the generic low energy physics of nearly-conformal gauge theories is characterized by combining... more
Elena Gramellini's picture
Elena Gramellini
Bonnie Fleming
Postdoctoral Associate


Measurement of the negative pion and positive kaon total hadronic cross sections on argon at the LArIAT experiment
The Liquid Argon Time Projection Chamber (LArTPC) represents one of the most advanced experimental technologies for physics at the Intensity Frontier due to its full 3D-imaging, excellent particle identification and precise calorimetric energy reconstruction. By deploying a LArTPC in a dedicated calibration test beam line at Fermilab, LArIAT (Liquid Argon In A Testbeam) aims to experimentally calibrate this technology in a controlled environment and to provide physics results key to the... more
Siddharth Prabhu's picture
Siddharth Prabhu
Walter Goldberger
Postdoctoral fellow

ICTS-TIFR, Bengalur

Gluon and Graviton Radiation from the Classical Double Copy
Motivated by the BCJ double copy in quantum field theory, we demonstrate a correspondence between perturbative solutions of classical scalar, gauge and gravity theories. First, we show that classical Yang-Mills radiation from a system of colored particles can be obtained from classical bi-adjoint scalar radiation emitted by a corresponding system of bi-adjoint colored particles, via a simple set of color-kinematic substitution rules. This completes a two-fold double copy that can be used to... more
Jared Vasquez's picture
Jared Vasquez
Paul Tipton
Senior Data Scientist

GE Digital

Illuminating the Higgs boson: Measurement of the properties of the Higgs boson in the diphoton channel
This thesis presents results for measurements of the Standard Model Higgs boson properties and production as measured in the diphoton decay channel using 36.1/fb of proton–proton collision data collected at √s = 13 TeV by the ATLAS detector in 2015 and 2016. All the measurements are performed under the assumption that the Higgs boson mass is 125.09 GeV and are compared to Standard Model predictions. No significant deviations of the measurements to the Standard Model predictions are... more
Fangzhou Zhu's picture
Fangzhou Zhu
Nikhil Padmanabhan
Quantitative Researcher

Citadel LLC

Information Mining in the Large Scale Structure of the universe
The Baryon Acoustic Oscillations signal has been an important tool to study the properties of dark energy. Designing efficient and robust data analysis methods that optimize the extraction of information is crucial to realize the immense potential of current and future galaxy surveys. To achieve this goal, this thesis presents the development and implementation of the 'redshift weighting' (Zhu et al 2015, 2016) and 'BAO emulation', two techniques that promise to increase the... more
Degree Date: May, 2018
Jeremy Cushman's picture
Jeremy Cushman
Karsten Heeger
Software Engineer

Optimus Ride

A search for neutrinoless double-beta decay in tellurium-130 with CUORE
The Cryogenic Underground Observatory for Rare Events (CUORE) is a ton-scale cryogenic experiment designed to search for neutrinoless double-beta decay in tellurium-130. The experiment consists of 988 ultracold tellurium dioxide bolometric crystals, which act as both the double-beta decay sources and detectors, in a close-packed configuration. This dissertation presents a search for neutrinoless double double-beta decay with the first two months of CUORE data. An observation of this decay would... more
Stefan Elrington's picture
Stefan Elrington
Sean Barrett

Boston Consulting Group

Developing new approaches to faster, high-spatial resolution Phosphorus-31 MR imaging of Bone
Magnetic resonance imaging (MRI) is the leading non-invasive imaging technique of soft tissues on anatomical and millimeter scales. In conventional MRI, hydrogen-1 in water and liquid fats are detected; the relatively narrow spectra of these signals are the key feature that enables MR imaging with high-spatial resolution (i.e., sub-mm in each dimension). The broad NMR spectra of solids would be much more difficult to use in MRI, and would ordinarily result in a low spatial resolution image.... more
Yvonne Gao's picture
Yvonne Gao
Robert Schoelkopf

Agency for Science, Technology and Research, Singapore

Multi-cavity Operations in Circuit Quantum Electrodynamics
The eventual success of a quantum computer relies on our ability to robustly initialise, manipulate, and measure quantum bits in presence of the inevitable occurrence of errors. This requires us to encode quantum information redundantly in systems that are suitable for Quantum Error Correction (QEC). One promising implementation is to use three dimensional (3D) superconducting microwave cavities coupled to one or more non-linear ancillae in the circuit quantum electrodynamics (cQED) framework.... more
Ariana Hackenburg's picture
Ariana Hackenburg
Bonnie Fleming
Data Scientist


Measurement of a Neutrino-Induced Charged Current Single Neutral Pion Cross Section at MicroBooNE
Micro Booster Neutrino Experiment (MicroBooNE) is a Liquid Argon Time Projection Chamber (LArTPC) operating in the Booster Neutrino Beamline at Fermi National Accelerator Laboratory. MicroBooNE’s physics goals include studying short basline ν oscillation and performing a suite of ν cross section measurements. Of particular interest to MicroBooNE, and the broader LArTPC community, are electromagnetic showers; these showers are at the heart of searches for νe interactions,... more
Xin Li's picture
Xin Li
Mark Reed
Postdoctoral Associate


Nano-confined interfaces: from artificial ion channels to nanofluidic battery
Nano-confined interfaces have received growing attention in recent years, with a wide range of applications including artificial ion channels, water desalination, osmotic energy conversion, and electrical energy storage. New phenomena occur and new physics is expected when solid-liquid interfaces are under nanoscale confinement. My research projects include divalent ion transport in artificial ion channels and nanofluidic battery for lithium storage. By taking advantage of precision definition... more
Anthony Lollo's picture
Anthony Lollo
Jack Harris
Data Science Manager

Yale School of Public Health

Phase slips in isolated mesoscopic superconducting rings
Phase slips result in many interesting properties of superconducting materials, such as the finite resistance of thin superconducting nanowires, the decay of current in superconducting rings, and the flux periodicity of the critical temperature, Tc, in hollow superconducting cylinders or rings. Though the first experiments were performed in 1961, the goal of observing coherent macroscopic quantum tunneling in uniform superconductors has sparked recent interest in the field.   We present... more
David Meltzer's picture
David Meltzer
David Poland
Postdoctoral Fellow


Topics in the Analytic Bootstrap
In this thesis we explore analytical methods to study conformal field theories (CFTs) in a general number of spacetime dimensions. We first use the lightcone bootstrap to systematically study correlation functions of scalar operators charged under global symmetries. We then generalize existing techniques in the lightcone bootstrap to study four-point functions containing operators with spin. As an application, we observe a close connection between anomalous dimensions of large spin, double-... more
Aleksander Rebane's picture
Aleksander Rebane
Yongli Zhang and James E. Rothman
Postdoctoral Associate

Yale School of Medicine, Department of Cell Biology

Exploring free energy landscapes of SNARE assembly using optical tweezers
Scientists have long sought to understand the working principles of protein machinery. A decisive step towards this goal has been the development of the Gibbs free energy landscape of protein folding. However, measurement of energy landscapes has remained challenging, particularly when folding occurs over one or more intermediates. An important example is soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) complex assembly, in which the energetics and kinetics of... more
Degree Date: December, 2017
Emine Altuntas's picture
Emine Altuntas
David DeMille

Measurement of Nuclear Spin Dependent Parity Violation in 138Ba19F
Parity, one of the three discrete spacetime symmetries of nature is broken by weak interactions. In atomic systems, parity violation is manifested in two ways: nuclear spin independent and spin dependent effects. The former is a relatively large effect that has been measured to better than 1%, whereas the nuclear spin dependent parity violation (NSD-PV) effect is small and remains poorly understood. To date the only nonzero measurement of NSD-PV effects in atoms was made in Cs, but the... more