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MESOSCOPIC PHYSICS and QUANTUM COMPUTING
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Quantum
Phase Transitions in Unconventional Josephson Arrays This experimental research focuses on two fundamental problems
of quantum mechanics of interacting quantum systems: the quantum phase
transitions in one dimension, and the many-body localization
in complex quantum systems isolated from the environment. To address these
phenomena, we develop novel arrays of nanoscale Josephson junctions
specifically designed to emulate the range of quantum models. The objectives
of the research program are to explore the emergence of novel symmetries near
the quantum critical point and the dynamics of these novel systems using the
microwave spectroscopic and time-domain techniques developed for the
characterization of superconducting qubits at ultra-low temperatures.
Realization of the research program is important for the broad field of
quantum superconducting electronics. In particular, the development of
Josephson arrays with large kinetic inductance and minimal losses offers new
functionality, such as fault-tolerant qubits and high-impedance isolation of
quantum circuits.
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