Science and Engineering

University of Arizona

Pierre Deymier, Pierre Lucas, Keith Runge
Tucson, AZ
December 2016

RA New Era of Computing: Phase-bits, a New Paradigm for Quantum Information Processing

Current quantum bit (qubit) platforms are based on quantum particles and easily lose their superposition of states in a noisy environment, or in large arrays by decoherence.  To overcome this critical drawback, a team at the University of Arizona will focus on developing, fabricating, and experimentally demonstrating arrays of ambient temperature elastic wave qubits analogues, called phase bits (f-bits), to achieve a paradigm shift in quantum information processing.  The elastic pseudospin superposition of states formed by f-bits can be stable and decoherence free, measurable without wave function collapse, and entangled.  With these properties, the experimental realization of f-bits offers a transformative new solution to reach the goal of quantum computing using materials-based quantum analogues.  Experimentally, the approach is based on a piezo-actuated and photoinduced graded chalcogenide elastic fiber as the fundamental platform for a f-bit.  By building from a single f-bit, to a serial two f-bits with controllable coupling, and ultimately a parallel array of N f-bits, the team will physically create for the first time each crucial fundamental component in all future phonon-based quantum analogue computing platforms and demonstrate quantum computer algorithms on these components.

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