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Showing 1 to 12 of 12 for “"mesoscopic physics"”.
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Microwave Spectroscopy and Transport Measurements of Andreev Bound States in Superconductor – Semiconductor Josephson Junctions
The physics of superconductor-semiconductor hybrid junctions is governed by a combination of the macroscopic quantum coherence of superconducting systems and the mesoscopic physics inherent to semiconducting devices and Andreev bound states are the microscopic states which mediate transport through …
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On the Typical and Average Contributions to the Persistent Current in Mesoscopic Rings
… of the conduction electrons in this disordered mesoscopic system. As with transport phenomena, this thermodynamic effect demonstrates sample-specific as well as ensemble-averaging qualities common to mesoscopic physics. With few exceptions, however, there is strong disagreement between the …
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Atom-light interactions in ultracold anisotropic media
… for studies of lower dimensional systems and mesoscopic physics in the ultracold regime. Ultracold anisotropic media were shown to possess many novel and attractive properties. Due to the suppression of radiation trapping in these systems, laser cooling was shown to be highly efficient leading …
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Zigzag Phase Transition in Quantum Wires and Localization in the Inhomogeneous One-Dimensional Electron Gas
… this work, we study two important themes in the physics of the interacting one-dimensional (1D) electron gas: the transition from one-dimensional to higher dimensional behavior, and the role of inhomogeneity. The interplay between interactions, reduced dimensionality, and inhomogeneity drives a …
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Mesoscopic quantum interference experiments in InGaAs and GaAs two-dimensional systems
… yields insight in fundamental properties of mesoscopic systems. Electron quantum interference constitutes an important method to explore mesoscopic physics and quantum decoherence. This dissertation focuses on two-dimensional (2D) electron systems in $delta-$Si doped n-type …
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Low-dimensional electron transport and surface acoustic waves in GaAs and ZnO heterostructures
… the communication industry, but also in quantum physics research, such as nanoelectronics, spintronics, quantum optics, and even quantum information processing. Here, I focus on low-dimensional electron transport and SAWs in GaAs and ZnO semiconductor heterostructures. The ability to pattern …
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Experimental Observation of Geometric Phases in Narrow-Gap Semiconductor Heterostructures
… phase by fabricating low dimensional (d ≤ 2) mesoscopic interferometers in high-quality narrow-gap semiconductor (NGS) heterostructures. The low effective-mass electrons in NGS heterostructures enable observation of delicate quantum phases; and the strong spin-orbit interaction (SOI) in the …
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Tunable spin polarization and conductance anomalies in mesoscopic one-dimensional systems
The electronic transport properties of mesoscopic one-dimensional (1D) devices have attracted significant interest because of their potential applications and their unique characteristics, some of which – for instance, the “0.7” conductance anomaly in quantum point contacts – have remained …
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Magnetoconductance and Dynamic Phenomena in Single-Electron Transistors
<p>The quantum mechanical nature of electrons at very low temperatures has posed interesting results in the resistivity of metals over the last century. When the temperature nears absolute zero, the resistivity due to electron-electron interactions and electron-phonon interactions become very small …
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QUANTUM TRANSPORT WITH COLD ATOMS
Cold atom technology poses a powerful platform to study the transport of quantum matter. The interaction between atoms, the type of atoms and their confinement can be designed to simulate quantum transport phenomena that are often difficult to realize within solid state devices. Recent advances in …
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Enhancement of superconductivity in Magnesium Diboride nano-structures
For many years scientists have tried different strategies to improve superconductivity. The recent development in the growth of thin films and grains at the nanoscale has allowed to measure in certain materials critical temperatures that differ from the bulk values. At the same time these results …
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Strain superlattice effects on the electronic properties of graphene
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01