Browsing by Author "Uchoa, Bruno"
Now showing items 1-15 of 15
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CASIMIR EFFECT: QUANTUM FLUCTUATIONS AND THERMAL FLUCTUATIONS
Li, Yang (2020-05-08)Any phenomenon caused by the nontrivial vacuum state of quantum fields in the presence of boundaries, nontrivial topology, varying background potentials, spacetime curvature, ect, could be referred to as a Casimir effect. ... -
Experimental Study of Cs Isotropic and Anisotropic Polyatomic Rydberg Molecules
Yang, Jin (2019-08-22)In this thesis, we investigate few-body physics and many-body physics of ultralong-range Rydberg molecules. Ultralong-range Rydberg molecules are formed through scattering processes between Rydberg electrons and ground ... -
Fluctuation-induced frictional effects on atoms and nanoparticles
Guo, Xin (2023-08)Fluctuations can cause extraordinary effects on atoms and nanoparticles. For example, a neutral but polarizable particle sitting close to a planar surface feels an attraction force towards the surface. This is the well-known ... -
Generation and Control of Atomic Resonant Squeezed Light
Kim, Saesun (2022-05)Quantum metrology is a new emerging technology studying of extreme sensitive and high resolution measurement based on quantum mechanical principles such as quantum entanglement and squeezing, which can potentially revolutionize ... -
GROUND STATE ENTANGLEMENT IN 2D STRONGLY INTERACTING BOSE-HUBBARD-TYPE MODELS
Wang, Wei (2017)In this dissertation, I present my work on ground state entanglement in Bose-Hubbard-type models. Bose-Hubbard-type models form a wide class of bosonic lattice models and describe systems that can be realized by cold atoms ... -
Interaction Effects in Quantum Wires and One-Dimensional Incoherent Semimetals
Jose, Geo (2022-08-04)In this thesis, we address the effect of interactions in low dimensional systems. In the first part, using bosonization, we study a microscopic model of parallel quantum wires constructed from two dimensional Dirac fermions ... -
Light Matter Interaction in A Rydberg Blockaded Ensemble
Jahangiri Jozani, Akbar (2022-06-29)This thesis presents a study of the interactions between two Rydberg atoms and Rydberg atomic ensemble with a monochromatic light field. The first part of the thesis covers the interaction between two Rydberg atoms. The ... -
Locally Finite Tree Actions for Groups of Dimension Two
Martino, Anthony (2022-12-16)We investigate finitely generated groups of cohomological dimension 2 and certain actions on locally finite trees. Our setting includes examples of Daniel Wise, which possess two canonical splittings. We show that under ... -
Molecular beam epitaxial growth of interband cascade structures with advances in InAs- and GaSb-based interband cascade lasers
Massengale, Jeremy (2023-04-21)Interband cascade lasers (ICLs) based on the type-II quantum well (QW) active region have attracted much interest over the years, in large part due to their low power consumption. Their operation hinges on two key features; ... -
Nonlinear Processes in Hot Sodium Vapors and Sodium Spinor Bose-Einstein Condensates for Entanglement Generation
Zhang, Qimin (2021-08-05)The primary purpose of this thesis is to study the generation of quantum entanglement via nonlinear processes in hot sodium vapors and ultracold sodium spinor Bose-Einstein condensates. The creation of entanglement can ... -
Quantum Effects in Nodal-line Semimetals
Kim, Sang Wook (2020)Topological materials such as Dirac and Weyl semimetals have relativistic quasiparticles at a discrete number of points in the Brillouin zone. Those materials are semimetalas in the bulk but host metallic surface states ... -
Searching for new physics through gravitational waves
Vagie, Daniel (2021-12-01)I would first like to express my sincere appreciation and gratitude to my dissertation advisor, Professor Kuver Sinha, whose advice and expertise has led me on a successful path to completing my studies. Thank you for being ... -
Spectral Theory of Dirac Operators with Measures
Zeng, Jie (2023-05-12)Dirac operators with measures are the extension of the classical Dirac operators. We give a compatible interpretation of such a Dirac differential equation with a measure coefficient and discuss the general direct spectral ... -
Supersymmetry and the Prisoner of Naturalness
Savoy, Michael (2017-07-27)In this work, I will address three concerns of supersymmetry. The first is the notion of naturalness and how much fine-tuning exists in a model. Historical measures, ∆ HS and ∆ BG , have led to an over estimate of the ... -
WEAK SCALE SUPERSYMMETRY FROM THE MULTIVERSE
Sengupta, Dibyashree (2020)The CERN Large Hadron Collider (LHC) has not found any experimental evidence yet for Supersymmetric (SUSY) particles. This has pushed the limits on the masses of SUSY particles in the multi-TeV region high enough to question ...