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.
Results
Showing 1 to 20 of 69 for “"Josephson junction"”.
-
Nonlinear dynamics of two-dimensional Josephson junction arrays
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
-
A Josephson junction bridge track and hold circuit
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
-
Nonlinear dynamics of one-dimensional Josephson junction arrays
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1995.
-
Studies on quasicrystals, superconducting micronetworks, and Josephson junction arrays
… properties of superconducting networks and Josephson junction arrays. Quantum interference effects have been observed recently in arrays of submicron superconductors. These interferences occur as a result of the coherence of the electronic wave functions. The basic phenomenon is the …
-
Fluxon Dynamics In Two-Gap Superconductor-Based Long Josephson Junction
<p>A superconducting tunnel junction with two-gap superconductors, such as MgB<sub>2</sub> and iron-based superconductors, can lead to more interesting phase dynamics than those with one-gap superconductors. The phase dynamics in a long Josephson junction (LJJ) may be described by using the …
-
Proximity effect in Josephson junction arrays fabricated on topological insulators
Made available in DSpace on 2021-03-05T21:36:55Z (GMT). No. of bitstreams: 2 BAI-DISSERTATION-2020.pdf: 7442590 bytes, checksum: f2366c9674c718683d0002106a938ec5 (MD5) LICENSE.txt: 4205 bytes, checksum: ff4956a5f1f17b4512ead7f1c97af426 (MD5) Previous issue date: 2020-11-06
-
Investigation of current-phase relation in topological insulator Josephson junction
… relation (CPR) study of S-TI-S lateral Josephson junction (TIJJ). In a magnetic field, localized Majorana bound states (MBS) are predicted to exist at the core of Josephson vortices. One of the key characteristics of such MBS in TIJJ system is that they possess a 4π periodic CPR, instead …
-
Determining the superconducting order parameter of UPt3 with Josephson junction interferometry
Made available in DSpace on 2010-05-14T20:51:19Z (GMT). No. of bitstreams: 2 Strand_Joel.pdf: 3215583 bytes, checksum: 56bc27939f1df7406b5bd380bfc02090 (MD5) license.txt: 4060 bytes, checksum: 7daff777161209135fcbaaaff684d71b (MD5)
-
Harmonic resonances in nonlinear Josephson junction circuits : experimental and analytical studies
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
-
Observation of nonlinear tunneling of a Bose-Einstein condensate in a single Josephson junction
… the first experimental implementation of a Josephson junction for Bose-Einstein condensates. The weak link between two BECs constitutes the nonlinear generalization of the well known Josephson junction of weakly-coupled superconductors that are separated by a thin insulating barrier. In our …
-
Effect of disorder on the vortex dynamics in superconducting Josephson junction arrays and clusters
… disorder on the transport properties of large Josephson junction arrays and clusters. In large arrays, intrinsic random disorder results in the washing out of features in the magnetoresistance. It also gives rise to multiple onsets in the resistive transition as a function of temperature. Large …
-
Fabrication and measurement of a niobium persistent current qubit
Recent successes with superconducting Josephson junction qubits make them prime candidates for the implementation of quantum computing. This doctoral thesis details the study of a niobium Josephson junction circuit for quantum computing applications. The thesis covers two main areas: 1) the …
-
Bose-Einstein Condensates in a Single Double Well Potential
… experimental implementation of a single bosonic Josephson junction and the discussion of the performed investigations. To generate this new kind of Josephson junction a 87-Rubidium Bose-Einstein condensate is split in a double well potential into two matter wave packets, which are coupled …
-
Cryogenic characterization of Josephson junctions
… of a superconducting quantum device, the Josephson junction. This thesis begins with a theoretical description of superconductivity and Josephson junctions, two superconductors separated by a thin insulating battier. Two models of Josephson barriers are presented for use in analysis. The …
-
Resonant readout of a superconducting persistent current qubit
Superconducting Josephson junction devices rank among the best candidates for realizing a quantum computer. While the coherent control of quantum dynamics has been demonstrated in these solid-state, macroscopic quantum systems, a major challenge has been to increase the coherence times for these …
-
Multi-terminal Josephson effect
Conventionally, a Josephson junction is an ubiquitous quantum device formed by a weak link between a pair of superconductors. In this work, we demonstrate the dc Josephson effect in mesoscopic junctions of more than two superconducting terminals. We report fabrication and characterization of the 3- …
-
Microwave Spectroscopy and Transport Measurements of Andreev Bound States in Superconductor – Semiconductor Josephson Junctions
… 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 …
-
Photon-induced vortex-antivortex pair creation in superconducting films
… both two-dimensional superconducting films and Josephson junction arrays in the presence of 850 nm light irradiation. Specifically the experiments aim to distinguish between the formation of vortex-antivortex pairs by single photon absorption and by thermal activation. The major objective for …
-
Hybrid Two Dimensional Quantum Devices
… to device fabrication. The first system is a Josephson junction field effect transistor (JJ-FET) fabricated in epitaxial Al-InAs. The supercurrent through the junction in this system can be tuned by applying an external electric field with a gate. Typically, the gate dielectric is a thick …
-
Non-Sinusoidal Current -Phase Relations in Superconductor-Ferromagnet-Superconductor Josephson Junctions
… superconductor-ferromagnet-superconductor (SFS) Josephson junction, and determined that it contains a positive second-harmonic term proportional to sin(2&phis;). The second-harmonic term becomes dominant near Tpi, the temperature at which the first-order term switches between the 0-state and the …
Page 1 of 4