10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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15 papers · 2 filters
Latent Computational Complexity of Symmetry-Protected Topological Order with Fractional Symmetry
Jacob Miller, Akimasa Miyake
An emerging insight is that ground states of symmetry-protected topological orders (SPTO's) possess latent computational complexity in terms of their many-body entanglement. By int…
Quantum Estimation of Parameters of Classical Spacetimes
T. G. Downes, J. R. van Meter, E. Knill +2
We describe a quantum limit to measurement of classical spacetimes. Specifically, we formulate a quantum Cramer-Rao lower bound for estimating the single parameter in any one-param…
Test of a hypothesis of realism in quantum theory using a bayesian approach
N. Nikitin, K. Toms
In this paper we propose a time-independent \textit{equality} and time-dependent \textit{inequality}, suitable for an experimental test of the hypothesis of realism. The derivation…
QInfer: Statistical inference software for quantum applications
Christopher Granade, Christopher Ferrie, Ian Hincks +5
Characterizing quantum systems through experimental data is critical to applications as diverse as metrology and quantum computing. Analyzing this experimental data in a robust and…
Demonstration of the Jaynes-Cummings ladder with Rydberg-dressed atoms
Jongmin Lee, Michael J. Martin, Yuan-Yu Jau +3
We observe the nonlinearity of the Jaynes-Cummings (JC) ladder in the Autler-Townes spectroscopy of the hyperfine ground states for a Rydberg-dressed two-atom system. Here the role…
Behavior of the maximum likelihood in quantum state tomography
Travis L Scholten, Robin Blume-Kohout
Quantum state tomography on a d-dimensional system demands resources that grow rapidly with d. They may be reduced by using model selection to tailor the number of parameters in th…
Optically Detected Magnetic Resonances of Nitrogen-Vacancy Ensembles in 13C Enriched Diamond
A. Jarmola, Z. Bodrog, P. Kehayias +6
We present an experimental and theoretical study of the optically detected magnetic resonance signals for ensembles of negatively charged nitrogen-vacancy (NV) centers in 13C isoto…
Robust symmetry-protected metrology with the Haldane phase
Stephen D. Bartlett, Gavin K. Brennen, Akimasa Miyake
We propose a metrology scheme that is made robust to a wide range of noise processes by using the passive, error-preventing properties of symmetry-protected topological phases. The…
Thermodynamics and the structure of quantum theory
Marius Krumm, Howard Barnum, Jonathan Barrett +1
Despite its enormous empirical success, the formalism of quantum theory still raises fundamental questions: why is nature described in terms of complex Hilbert spaces, and what mod…
Optimal and Secure Measurement Protocols for Quantum Sensor Networks
Zachary Eldredge, Michael Foss-Feig, Jonathan A. Gross +2
Studies of quantum metrology have shown that the use of many-body entangled states can lead to an enhancement in sensitivity when compared to product states. In this paper, we quan…
Arbitrary Dicke-State Control of Symmetric Rydberg Ensembles
Tyler Keating, Charles H. Baldwin, Yuan-Yu Jau +3
Symmetric ensembles of neutral atoms interacting via the Rydberg blockade are well-described by the Jaynes-Cummings Hamiltonian. We use this framework to study the problem of gener…
Composites and Categories of Euclidean Jordan Algebras
Howard Barnum, Matthew A. Graydon, Alexander Wilce
We consider possible non-signaling composites of probabilistic models based on euclidean Jordan algebras (EJAs), satisfying some reasonable additional constraints motivated by the…
Strictly-complete measurements for bounded-rank quantum-state tomography
Charles H. Baldwin, Ivan H. Deutsch, Amir Kalev
We consider the problem of quantum-state tomography under the assumption that the state is pure, and more generally that its rank is bounded by a given value . In this scenario…
Models of reduced-noise, probabilistic linear amplifiers
Joshua Combes, Nathan Walk, A. P. Lund +2
We construct an amplifier that interpolates between a nondeterministic, immaculate linear amplifier and a deterministic, ideal linear amplifier and beyond to nonideal linear amplif…
Quantum and classical control of single photon states via a mechanical resonator
Sahar Basiri-Esfahani, Casey R Myers, Joshua Combes +1
Optomechanical systems typically use light to control the quantum state of a mechanical resonator. In this paper, we propose a scheme for controlling the quantum state of light usi…