What is the Gravitational Field of a Mass in a Spatially Nonlocal Quantum Superposition?

no code yet • 26 Oct 2021

One question to be answered is whether the gravitational field behaves as the classical superposition of two particles separated by a spatial distance with half the mass located at each position or as a quantum superposition with a far more interesting and subtle behaviour for the gravitational field.

General Relativity and Quantum Cosmology

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Resource theory of quantum uncomplexity

no code yet • 21 Oct 2021

The greater a state's distance from maximal complexity, or ``uncomplexity,'' the more useful the state is as input to a quantum computation.

Quantum Physics Disordered Systems and Neural Networks General Relativity and Quantum Cosmology High Energy Physics - Theory

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Who's Afraid of the Supersymmetric Dark? The Standard Model vs Low-Energy Supergravity

no code yet • 25 Oct 2021

Use of supergravity equations in astronomy and late-universe cosmology is often criticized on three grounds: (i) phenomenological success usually depends on the supergravity form for the scalar potential applying at the relevant energies; (ii) the low-energy scalar potential is extremely sensitive to quantum effects involving very massive particles and so is rarely well-approximated by classical calculations of its form; and (iii) almost all Standard Model particles count as massive for these purposes and none of these are supersymmetric.

High Energy Physics - Theory

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Quantum Machine Learning Transition Probabilities in Electronic Excitation Spectra across Chemical Space: The Resolution-vs.-Accuracy Dilemma

no code yet • 22 Oct 2021

We present a new, high-veracity chemical space dataset -- bigQM7$\omega$ -- with 12, 880 molecules containing up to 7 heavy atoms, and highlight the key challenges in quantum machine learning modeling of electronic excitation spectra.

Chemical Physics

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Closing the "Quantum Supremacy" Gap: Achieving Real-Time Simulation of a Random Quantum Circuit Using a New Sunway Supercomputer

no code yet • 27 Oct 2021

We develop a high-performance tensor-based simulator for random quantum circuits(RQCs) on the new Sunway supercomputer.

Quantum Physics Distributed, Parallel, and Cluster Computing

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Clifford covariance of Wigner functions, positive representation of Pauli measurement, and cohomology

no code yet • 22 Oct 2021

The scheme of quantum computation with magic states, and in particular the role of the Wigner function as an indicator of quantumness, motivate the question of when Clifford-covariant Wigner functions exist, and when Wigner functions exist that represent Pauli measurements positively.

Quantum Physics

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Development of an Undergraduate Quantum Engineering Degree

no code yet • 25 Oct 2021

Quantum technology is exploding.

Physics Education Quantum Physics

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Collective durotaxis of cohesive cell clusters on a stiffness gradient

no code yet • 27 Oct 2021

Many types of motile cells perform durotaxis, namely, directed migration following gradients of substrate stiffness.

Biological Physics Soft Condensed Matter Tissues and Organs

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Isospin magnetism and spin-triplet superconductivity in Bernal bilayer graphene

no code yet • 21 Oct 2021

We report the observation of spin-polarized superconductivity in Bernal bilayer graphene when doped to a saddle-point van Hove singularity generated by large applied perpendicular electric field.

Mesoscale and Nanoscale Physics Strongly Correlated Electrons

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Thermodynamic stability and critical points in multicomponent mixtures with structured interactions

no code yet • 21 Oct 2021

Theoretical work has shed light on the phase behavior of idealized mixtures with random interactions.

Statistical Mechanics Biological Physics

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