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Macroscopic tunnel splittings in superconducting phase qubits
Philip R. Johnson, William T. Parsons, Frederick W. Strauch +4
Prototype Josephson-junction based qubit coherence times are too short for quantum computing. Recent experiments probing superconducting phase qubits have revealed previously unsee…
Spectroscopy of Three-Particle Entanglement in a Macroscopic Superconducting Circuit
Huizhong Xu, Frederick W. Strauch, Sudeep Dutta +8
We study the quantum mechanical behavior of a macroscopic, three-body, superconducting circuit. Microwave spectroscopy on our system, a resonator coupling two large Josephson junct…
Moving Charges, Detectors, and Mirrors in a Quantum Field with Backreaction
Chad R. Galley, B. L. Hu, Philip R. Johnson
This is a progress report on our current work on moving charges, detectors, and moving mirrors in a quantum field treated in a fully relativistic way via the Feynman-Vernon influen…