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Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
Increasing dominance of negative parity intruder states in neutron-rich nuclei in the sd shell as N approaches 20 shows evidence of evolving shell structure. Systematically examining the structure of isotopes with increasing N while...
The question of how do the properties of nuclei evolve with increasing excitation energy and angular momentum is one of the current frontiers in nuclear physics. State of the art $gamma$-ray detector systems have been used to investigate...
In this dissertation, we study three biological applications of networks. The first one is a biological coevolution model, in which a species is defined by a genome in the form of a finite bitstring and the interactions between species...
When placed in a strong magnetic field, a two-dimensional electron gas can exhibit the quantum Hall effect in which a step like pattern forms in the Hall resistance, RH, which is defined to be the voltage drop perpendicular to the...
We study the two-dimensional (2D) t−J model (and its extensions) in order to understand the hole dynamics in the 2D CuO2 plane of the cuprate superconductors. Within the linear spin wave approximation (LSW) of the Hamiltonian and the non...
We study the unusual transport behavior driven mostly by the correlations between the charge carriers in lattice and continuum systems. The strongly correlated systems are studied in the classical limit where the Coulomb interaction...
Clustering of α particles plays an important role in light atomic nuclei. For example, multicenter structures built on the well-known low-lying states of 8Be can be formed. The addition of nucleons to the system may result in covalent...
The Large Hadron Collider is pushing high energy physics in to a brand new territory. This extraordinary era may bring discoveries of unprecedented magnitude, delivering validation or extreme dissappointment to the physics theories of...
This thesis is devoted to the study of magnetic properties of strongly correlated quantum matters in one and two dimensions. The study employs predominantly numerical techniques, such as Exact Diagonalization (ED), Finite Temperature...
The thesis presents the recent development of the 3rd generation femtosecond electron diffractometer in Professor Jim Cao's group and its application to study ultrafast processes in real time. The research activities cover two main...
Proteins are folded chains of amino acids. Some of the amino acids (e.g. Lys, Arg, His, Asp, and Glu) carry charges under physiological conditions. Proteins almost always function through binding to other proteins or ligands, for example...
Understanding how massive stars explode as core-collapse supernovae (CCSN) remains an important challenge in stellar evolution theory. When massive stars reach the end of their lives, the central iron core can no longer support the...
The technique of studying nuclear structure under the rigors of high angular momentum through the examination of γ-ray cascades has recently undergone an explosion in productivity. These advances have been brought on primarily by the...
This dissertation presents the results from three major experiments to investigate angular momentum induced structural or shape changes in A~160 and A~110 atomic nuclei. The basic question we are trying to answer is "How do the...
Investigation of nuclei with neutron and proton imbalance is at the forefront of nuclear physics research today, along with how the nuclear structure varies with the movement of the nucleons. Experimental data and theoretical models work...
Reaction rates are critical in understanding the nuclear evolution of stellar environments suchas Classical Novae and Type I X-ray Bursts. Nuclear properties of the neutron-deficient nucleus 18Ne are needed to reduce uncertainties in the...
The discovery of graphene marked a turning point in research and interest towards 2 -D materials. Among them, Transition Metal Dichalcogenides (TMDs) and Metal Monochalcogenides (MM) have seen an upturn in interest owing to their...
The first, second, and third rank analyzing powers tT10, tT20, tT30, and tT20 as well as cross section angular distributions for 12C(7Li, t/d/p) at 34 MeV were measured. The experimental results gave nonzero values for tT10 and tT30...
Despite over thirty years of research, the origin of high-temperature superconductivity remains unsolved. In these thirty years, the phase diagram for the rst-discovered high-temperature superconductors, the cuprates, has been found to...
Studying of relativistic particles in the condensed matter system became possible after a discovery of graphene in 2004. What follows from graphene was search for other materials hosting relativistic particles, such as Dirac semimetals...
The present theoretical framework to describe the universe in particle level, the Standard Model describes only 4% of the matter-energy budget of the universe. There are many theories which attempt to describe the universe beyond the...
One of the primary goals of modern condensed matter physics is to elucidate the nature of the ground state in various electronic systems. Many correlated electron materials, such as high temperature superconductors, geometrically...
Nb₂PᵪSe₅ is a high-field, anisotropic, 2-band superconductor with both electron-like and hole-like charge carriers at the Fermi level. The crystal structure is assembled such that 2D sheets of Nb₄Pd₁Se₁₀ are connected to each other by an...
High-entropy alloys are a class of materials that are defined as containing five or more constituent elements, each with atomic percentages of 5-35%. They are of interest not only because of their novel structural/chemical composition, ...
High field magnets are integral to the success of various significant scientific and technological endeavors such as materials characterization, high energy physics, and plasma fusion generators. Superconductors are integral to building...
This work reports on the first efforts at FSU's John D. Fox Accelerator Laboratory to study the nuclear structure of states embedded in the continuum through particle-unbound angular correlations. As part of this work, two principle...
Results are reported on the reaction gamma p -> p p anti-p with beam energy in the range 4.8-5.5 GeV. The data were collected at the Thomas Jefferson National Accelerator Facility in CLAS experiment E01-017(G6C). The focus of this study...
Cryo-electron microscopy (or cryoEM) is a rapidly expanding field with many research groups developing new methods and hardware every day. cryoEM is now on its way to replace X-ray crystallography as the method of choice to study...
The realm of hadronic spectroscopy offers a window into the inner workings of quark-gluon inter- actions within hadrons, while providing new insights into the existence of excited hadrons. The knowledge gained from the further study of...
This thesis addresses the role of topology and geometry in quantum gravity. A major topic will be how inequivalent differentiable structures (exotic smoothness) can play a physically significant role in both semiclassical gravity and...
Bosons play an important role in the study of emergent phenomena, such as the appearance of effective degrees of freedom, symmetries, and phase transitions. In this work, we use an ensemble of Hamiltonians with two-body interactions with...
Determining the stellar production site of 26Al is an exciting problem that spans experimental and theoretical nuclear physics, astrophysics, and observational astronomy. This thesis details an experiment to measure the 25Al(d, n)26Si...
The Poisson-Boltzmann equation, PBE, the linearized PBE, LPBE, and generalized Born, GB, model are implicit solvent methods that accelerate biophysical calculations by eliminating the need to integrate across the solvent's degrees of...
Experimental results of two independent studies on the nuclear structure of the neutron-rich nuclei 44S and 20O are presented. A short introduction on the context of these studies within nuclear physics is given in chapter 1. Because of...
Since the discovery of the exotic properties of graphene, two dimensional materials such as metal chalcogenides, transition metal oxides and other 2D compounds have gained renewed interest. Graphene, silicene, germanene, graphyne and...
Microscopic nuclear shell model calculations have been advancing in capability over the last 40years. Florida State University's experimental nuclear structure group has participated in this advancement with the introduction of the FSU...
Advances in technology require the advancement of understanding and creating new materials. Quantum materials - materials exhibiting quantum behavior- are a hot topic in condensed matter physics. Perhaps the most well known new materials...
SmB6 has a cubic CsCl structure consisting of Boron octahedra at the corners of the cubic structure at the Cl sites and Samarium sitting at the body center at the Cs site. Extensive measurements were carried out on high quality single...
Studies of rp-process nucleosynthesis in stellar explosions show that establishing the lowest l = 0 and l = 1 resonances is the most important step to determine reaction rates in the astrophysical rp– process path. In an experiment...
Modern effective-theory techniques are applied to the many-body nuclear problem and frustrated quantum spin chains. A novel approach is proposed for the renormalization of nucleon-nucleon operators in a manner consistent with the...
Heavy stable charged particles (HSCPs) have been searched for at the Large Hadron Collider since its initial data taking in 2010. The search for heavy stable charged particles provide a means of directly probing the new physics realm, as...
Europium exhibits two stable valence states, Eu2+ and Eu3+, with energies closely matched, wherein the magnetic Eu2+ state is significantly larger than the nonmagnetic Eu3+. EuPd2Si2 (EPS) undergoes a bulk valence state transition from...
Backbending, Seniority and Pauli Blocking of Pairing Correlations at High Rotational Frequencies in Rapidly Rotating Nuclei: A Systematic Analysis of Er, Yb, Hf and W Isotopes and Nuclear Structure Studies of ¹⁷⁹, ¹⁸⁰W, ¹⁶⁰, ¹⁶¹Gd and ¹⁵⁵Sm
The goal of nuclear structure experiments is to understand how properties of nuclei evolve as a function of key observables such as proton and neutron numbers, deformation, angular momentum and excitation energy, to name a few. In order...
How does subatomic matter organize itself? Neutron stars are cosmic laboratories uniquely poised to answer this fundamental question that lies at the heart of nuclear science. Newly commissioned rare isotope facilities, telescopes...
In this dissertation, I present a study of a wide range of organic and inorganic materials using radio frequency (rf) measurement methods. The organic samples under study were λ-(BETS )2 GaCl4 and λ-(BETS )2 FeCl4 . In the λ-(BETS )2...
I study thermonuclear explosions of White Dwarf (WD) stars, or so-called Type Ia supernovae (SNe Ia). A WD is the final stage of stellar evolution of a star with an initial mass of less than 8 Solar masses, and the thermonuclear...
Halide Perovskites have recently risen as a new class of optoelectronic materials. Remarkable optical and electrical properties have led to the demonstration of various perovskite-based devices such as solar cells1, LEDs2-5, ...
Functional ferroelectric and magnetic materials have played an important role of modern technology in the sensor or storage device industries. Ferroelectricity and ferromagnetism emerge from different origins. However, it is discovered...
This dissertation investigates the transport properties of unconventional superconductors which differ from the conventional superconductors on two aspects, one is the pairing symmetry of the order parameter, the other is the net...
In this Thesis we present the Next-To-Leading-Order calculation, O(ααs2), of the inclusive cross section for a photon and a heavy quark (charm or bottom), p bar p / pp γ + Q +X, (Q=c, b) at hadron colliders. We include fragmentation...
Some of the material in is restricted to members of the community. By logging in, you may be able to gain additional access to certain collections or items. If you have questions about access or logging in, please use the form on the Contact Page.
