Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Pair density wave"”.
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Pair density wave superconducting states and statistical mechanics of dimers
… and 4 are devoted to the study of the so called pair-density-wave (PDW) superconducting state and some of its connections to electronic liquid crystal (ELC) phases, its topological aspects in a one dimensional model and its appearance in a quasi-one dimensional system. On the other hand, chapter …
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The electronic structure of the pair-density-wave (PDW) superconductor in the cuprates
Pair density waves (PDWs) are a inhomogeneous superconducting states whose Cooper pairs possess a finite center-of-mass-momentum, ±Qi, resulting in a oscillatory gap in space in the ith directiond. In other words, the PDW order parameter is a Fourier expansion of the superconducting order with non …
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Exploring exotic superconducting order in La-based cuprate materials using Josephson interferometry
… component of the CPR, a signature of pair-density wave (PDW) order. This component is strongest at x=0.125 doping, where PDW order is believed to be strongest, and increases in magnitude with temperature as conventional superconductivity is suppressed. Likewise, at x=0.155 doping, …
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Communal pairing in Fermi gases with attractive interactions
… fermion gas are known to induce a Cooper pairing instability where the fermion pairs have zero net momentum, leading to BCS superconductivity. Extensions for spin-imbalanced systems include breached superfluids, Fulde–Ferrell–Larkin–Ovchinnikov theory, and pair density wave theory. We …
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Exploring strongly interacting gapless states : cuprates, pair density waves, and fluctuating superconductivity
We study the physical property of pair density wave (PDW) and fluctuating PDW, and use it to build an effective theory of the strongly interacting pseudogap phase in cuprate high temperature superconductors. In Chapter 2, we study how Fulde-Ferrell state, the simplest form of PDW, responds to …
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Coupled one dimensional electron systems and stripe phases of high temperature superconductors
… chapter one, I consider the problem of the Local Density of States for spin-gapped one-dimensional charge density wave (CDW) states and Mott insulators in the presence of a hard-wall boundary. I calculate the boundary contribution to the single-particle Green function in the low-energy limit using …
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Imaging topological superconductivity in UTe_2
… unmeasured phenomena. Although the physics of p-wave superconductivity was developed in the 1960s there have been little to no conclusive measurements of a p-wave superconductor. The subject of this thesis, UTe_2, has ignited a new wave of interest in p-wave superconducting states as it offers …
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New perspectives on fractional quantum Hall physics
… we apply this formalism in Chapter 3 to identify paired states of composite fermions in a square-lattice Hofstadter model. Magnetic translation symmetry is found to enforce finite-momentum pairing of the composite fermions, yielding pair-density wave (PDW) states with daughter charge-density wave …