Search Results - "Smelyanskiy, Vadim N."

Barren plateaus in quantum neural network training landscapes by McClean, Jarrod R., Boixo, Sergio, Smelyanskiy, Vadim N., Babbush, Ryan, Neven, Hartmut

“…Many experimental proposals for noisy intermediate scale quantum devices involve training a parameterized quantum circuit with a classical optimization loop…”
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Universal quantum control through deep reinforcement learning by Niu, Murphy Yuezhen, Boixo, Sergio, Smelyanskiy, Vadim N., Neven, Hartmut

“…Emerging reinforcement learning techniques using deep neural networks have shown great promise in control optimization. They harness non-local regularities of…”
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Computational multiqubit tunnelling in programmable quantum annealers by Boixo, Sergio, Smelyanskiy, Vadim N., Shabani, Alireza, Isakov, Sergei V., Dykman, Mark, Denchev, Vasil S., Amin, Mohammad H., Smirnov, Anatoly Yu, Mohseni, Masoud, Neven, Hartmut

“…Quantum tunnelling is a phenomenon in which a quantum state traverses energy barriers higher than the energy of the state itself. Quantum tunnelling has been…”
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Nonergodic Delocalized States for Efficient Population Transfer within a Narrow Band of the Energy Landscape by Smelyanskiy, Vadim N., Kechedzhi, Kostyantyn, Boixo, Sergio, Isakov, Sergei V., Neven, Hartmut, Altshuler, Boris

“…We address the long-standing problem of the structure of the low-energy eigenstates and long-time coherent dynamics in quantum spin-glass models. Below the…”
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Open-System Quantum Annealing in Mean-Field Models with Exponential Degeneracy by Kechedzhi, Kostyantyn, Smelyanskiy, Vadim N.

“…Real-life quantum computers are inevitably affected by intrinsic noise resulting in dissipative nonunitary dynamics realized by these devices. We consider an…”
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Characterizing quantum supremacy in near-term devices by Boixo, Sergio, Isakov, Sergei V., Smelyanskiy, Vadim N., Babbush, Ryan, Ding, Nan, Jiang, Zhang, Bremner, Michael J., Martinis, John M., Neven, Hartmut

“…A critical question for quantum computing in the near future is whether quantum devices without error correction can perform a well-defined computational task…”
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Understanding Quantum Tunneling through Quantum Monte Carlo Simulations by Isakov, Sergei V, Mazzola, Guglielmo, Smelyanskiy, Vadim N, Jiang, Zhang, Boixo, Sergio, Neven, Hartmut, Troyer, Matthias

“…The tunneling between the two ground states of an Ising ferromagnet is a typical example of many-body tunneling processes between two local minima, as they…”
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Quantum Annealing via Environment-Mediated Quantum Diffusion by Smelyanskiy, Vadim N, Venturelli, Davide, Perdomo-Ortiz, Alejandro, Knysh, Sergey, Dykman, Mark I

“…We show that quantum diffusion near a quantum critical point can provide an efficient mechanism of quantum annealing. It is based on the diffusion-mediated…”
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A case study in programming a quantum annealer for hard operational planning problems by Rieffel, Eleanor G., Venturelli, Davide, O’Gorman, Bryan, Do, Minh B., Prystay, Elicia M., Smelyanskiy, Vadim N.

“…We report on a case study in programming an early quantum annealer to attack optimization problems related to operational planning. While a number of studies…”
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Determination and correction of persistent biases in quantum annealers by Perdomo-Ortiz, Alejandro, O’Gorman, Bryan, Fluegemann, Joseph, Biswas, Rupak, Smelyanskiy, Vadim N.

“…Calibration of quantum computers is essential to the effective utilisation of their quantum resources. Specifically, the performance of quantum annealers is…”
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Low-Depth Mechanisms for Quantum Optimization by McClean, Jarrod R., Harrigan, Matthew P., Mohseni, Masoud, Rubin, Nicholas C., Jiang, Zhang, Boixo, Sergio, Smelyanskiy, Vadim N., Babbush, Ryan, Neven, Hartmut

“…One of the major application areas of interest for both near-term and fault-tolerant quantum computers is the optimization of classical objective functions. In…”
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Scaling laws for precision in quantum interferometry and the bifurcation landscape of the optimal state by Knysh, Sergey, Smelyanskiy, Vadim N., Durkin, Gabriel A.

“…Phase precision in optimal two-channel quantum interferometry is studied in the limit of large photon number N>>1, for losses occurring in either one or both…”
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Modeling wave propagation and scattering from impact damage for structural health monitoring of composite sandwich plates by Luchinsky, Dmitry G, Hafiychuk, Vasyl, Smelyanskiy, Vadim N, Kessler, Seth, Walker, James, Miller, Jim, Watson, Michael

“…Results of modeling of the wave propagation, impact, and damage detection in a sandwich honeycomb plate using piezoelectric actuator/sensor scheme are…”
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Inferential framework for nonstationary dynamics. II. Application to a model of physiological signaling by Duggento, Andrea, Luchinsky, Dmitri G, Smelyanskiy, Vadim N, Khovanov, Igor, McClintock, Peter V E

“…The problem of how to reconstruct the parameters of a stochastic nonlinear dynamical system when they are time-varying is considered in the context of online…”
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Statistical mechanics of the quantum K -satisfiability problem by Knysh, Sergey, Smelyanskiy, Vadim N

“…We study the quantum version of the random K -satisfiability problem in the presence of an external magnetic field Gamma applied in the transverse direction…”
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Inferential framework for nonstationary dynamics. I. Theory by Luchinsky, Dmitri G, Smelyanskiy, Vadim N, Duggento, Andrea, McClintock, Peter V E

“…A general Bayesian framework is introduced for the inference of time-varying parameters in nonstationary, nonlinear, stochastic dynamical systems. Its…”
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Model-based diagnostics for propellant loading systems by Daigle, Matthew, Foygel, Michael, Smelyanskiy, Vadim

“…The loading of spacecraft propellants is a complex, risky operation. Therefore, diagnostic solutions are necessary to quickly identify when a fault occurs, so…”
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Fourier analysis of sampling from noisy chaotic quantum circuits by Boixo, Sergio, Smelyanskiy, Vadim N, Neven, Hartmut

“…Sampling from the output distribution of chaotic quantum evolutions, and of pseudo-random universal quantum circuits in particular, has been proposed as a…”
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Efficient approximation of experimental Gaussian boson sampling by Villalonga, Benjamin, Niu, Murphy Yuezhen, Li, Li, Neven, Hartmut, Platt, John C, Smelyanskiy, Vadim N, Boixo, Sergio

“…Two recent landmark experiments have performed Gaussian boson sampling (GBS) with a non-programmable linear interferometer and threshold detectors on up to 144…”
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Quantum Monte Carlo tunneling from quantum chemistry to quantum annealing by Mazzola, Guglielmo, Smelyanskiy, Vadim N, Troyer, Matthias

“…Phys. Rev. B 96, 134305 (2017) Quantum Tunneling is ubiquitous across different fields, from quantum chemical reactions, and magnetic materials to quantum…”
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