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Raymond Simmonds, PhD

Physicist
National Institute of Standards & Technology
Boulder, CO, United States

Dr. Raymond W. Simmonds received his B.A. (1995), M.S. (1999), and Ph.D. (2002) in Physics from the University of California, Berkeley developing a Superfluid Quantum Interference Device (SQUID). From 2002-2004, Dr. Simmonds was on a NRC Postdoctoral fellowship with Dr. John Martinis at NIST, Boulder, to develop coupled superconducting phase qubits. Dr. Simmonds joined the NIST faculty as a Physicist in 2004 and was Project Leader from 2012-2014, but has since moved back to the bench as an experimental physicist in the Advanced Microwave Photonics Group in the Applied Physics Division of the Physical Measurement Laboratory (PML) at NIST, Boulder. He currently pursues research towards developing Quantum Information Technology with superconducting circuits. His research is focused on the application microwave techniques at low temperatures to enable the control and measurement of quantum information for performing simulations or computing. His main research focuses on utilizing parametric coupling with superconducting quantum bits and cavities to improve the speed and fidelity of quantum gates and to provide fast, high fidelity qubit measurements. Notable career achievements include: identified two-level system (TLS) defects in Josephson tunnel barriers and insulators within superconducting qubits (2004-2006), demonstrated coupled phase qubits via simultaneous state measurement (2005), demonstrated first quantum bus/memory with superconducting circuits (2007), developed remote sensing and control of superconducting qubits with a self-aligning flip-chip technology (2010), developed SQUID based tunable couplers (2010-present), developed vacuum-gap capacitors and cross-overs (2010), which led to strong-coupling circuit cavity electro-mechanics (2011-present), designed microwave-to-optical quantum transducers in collaboration with NIST/JILA (2014-present), and developed parametric coupling of superconducting qubits, resonators, and electro-mechanics (2008-present).

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