Results 71 to 80 of about 735,278 (318)
Improving the efficiency of variational tensor network algorithms [PDF]
, 2014 We present several results relating to the contraction of generic tensor networks and discuss their application to the simulation of quantum many-body systems using variational approaches based upon tensor network states.
Evenbly, Glen, Pfeifer, Robert N. C.
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Three-dimensional isometric tensor networks
Physical Review Research, 2021 Tensor network states are expected to be good representations of a large class of interesting quantum many-body wave functions. In higher dimensions, their utility is however severely limited by the difficulty of contracting the tensor network, an ...
Maurits S. J. Tepaske, David J. Luitz
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Chaotic inflation in higher derivative gravity theories [PDF]
, 2015 In this paper, we investigate chaotic inflation from scalar field subjected to potential in the framework of $f(R^2, P, Q)$-gravity, where we add a correction to Einstein's gravity based on a function of the square of the Ricci scalar $R^2$, the ...
Myrzakul, Shynaray +2 more
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Tachyonic cosmology with cubic contractions of the Riemann tensor
The European Physical Journal C, 2022 AbstractA new cosmological theory is proposed in the theoretical framework of modified gravity theories which is based on a tachyonic field non-minimally coupled with a specific topological invariant constructed with third order contractions of the Riemann tensor.
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Efficient parallelization of tensor network contraction for simulating quantum computation
Nature Computational Science, 2021 We develop an algorithmic framework for contracting tensor networks and demonstrate its power by classically simulating quantum computation of sizes previously deemed out of reach.
Cupjin Huang +20 more
semanticscholar +1 more source
Relative Tutte polynomials of tensor products of colored graphs [PDF]
, 2012 The tensor product $(G_1,G_2)$ of a graph $G_1$ and a pointed graph $G_2$ (containing one distinguished edge) is obtained by identifying each edge of $G_1$ with the distinguished edge of a separate copy of $G_2$, and then removing the identified edges. A
Brylawski, Chmutov, G. HETYEI, Y. DIAO
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Contractive homomorphisms and tensor product norms [PDF]
Integral Equations and Operator Theory, 1995 For any complex domain Ω, one can ask if all contractive algebra homomorphisms ofA(Ω) (into the algebra of Hilbert space operators) are completely contractive or not. By Ando's Theorem, this has an affirmative answer for Ω =D2, the bi-disc-while the answer is unknown for Ω =D2, the unit ball of ℂ2 with l1-norm.
Gadadhar Misra, Bhaskar Bagchi
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FEBS Letters, EarlyView.Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu +17 more
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Early evolution of fully convective stars in scalar–tensor gravity
European Physical Journal C: Particles and Fields, 2023 In this work, the early evolution of low-mass fully convective stars is studied in the context of DHOST (degenerate higher order scalar-tensor) theories of gravity.
Débora Aguiar Gomes, Aneta Wojnar
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, 2003 A generalized version of the Einstein equations in the 4-index form, containing the Riemann tensor linearly, is derived. It is shown, that the gravitational energy-momentum density tensor outside a source is represented across the Weyl tensor vanishing ...
Zakir, Zahid
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