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18 papers · 2 filters
Quantum-enhanced accelerometry with a non-linear electromechanical circuit
Kurt Jacobs, Radhakrishnan Balu, John D. Teufel
It is known that placing a mechanical oscillator in a superposition of coherent states allows, in theory, a measurement of a linear force whose sensitivity increases with the ampli…
Fast State Transfer and Entanglement Renormalization Using Long-Range Interactions
Zachary Eldredge, Zhe-Xuan Gong, Jeremy T. Young +3
In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range inte…
Continuous-time limit of topological quantum walks
Radhakrishnan Balu, Daniel Castillo, George Siopsis +1
We derive the continuous-time limit of discrete quantum walks with topological phases. We show the existence of a continuous-time limit that preserves their topological phases. We…
Emergent equilibrium in many-body optical bistability
Michael Foss-Feig, Pradeep Niroula, Jeremy T. Young +4
Many-body systems constructed of quantum-optical building blocks can now be realized in experimental platforms ranging from exciton-polariton fluids to ultracold gases of Rydberg a…
Observing quantum chaos with noisy measurements and highly mixed states
Jason F. Ralph, Kurt Jacobs, Mark J. Everitt
A fundamental requirement for the emergence of classical behavior from an underlying quantum description is that certain observed quantum systems make a transition to chaotic dynam…
High-Threshold Low-Overhead Fault-Tolerant Classical Computation and the Replacement of Measurements with Unitary Quantum Gates
Benjamin Cruikshank, Kurt Jacobs
Von Neumann's classic "multiplexing" method is unique in achieving high-threshold fault-tolerant classical computation (FTCC), but has several significant barriers to implementatio…