Results 31 to 40 of about 62,884 (217)

Multi-boundary entanglement in Chern-Simons theory with finite gauge groups

open access: yesJournal of High Energy Physics, 2020
We study the multi-boundary entanglement structure of the states prepared in (1+1) and (2+1) dimensional Chern-Simons theory with finite discrete gauge group G.
Siddharth Dwivedi   +3 more
doaj   +1 more source

Structure of k-Quasi-m,n-Isosymmetric Operators

open access: yesJournal of Mathematics, 2022
The investigation of new operators belonging to some specific classes has been quite fashionable since the beginning of the century, and sometimes it is indeed relevant.
Sid Ahmed Ould Ahmed Mahmoud   +3 more
doaj   +1 more source

The smallest interacting universe

open access: yesJournal of High Energy Physics, 2023
We study a mechanism by which the most basic structures of quantum physics can emerge from the most meager of starting points, a Hilbert space, lacking any preassigned structure such as a tensor decomposition, and a loss function.
Modjtaba Shokrian Zini   +2 more
doaj   +1 more source

Khatri-Rao Products for Operator Matrices Acting on the Direct Sum of Hilbert Spaces

open access: yesJournal of Mathematics, 2016
We introduce the notion of Khatri-Rao product for operator matrices acting on the direct sum of Hilbert spaces. This notion generalizes the tensor product and Hadamard product of operators and the Khatri-Rao product of matrices.
Arnon Ploymukda, Pattrawut Chansangiam
doaj   +1 more source

Reduced density matrix and entanglement of interacting quantum field theories with Hamiltonian truncation

open access: yesPhysical Review Research, 2022
Entanglement is the fundamental difference between classical and quantum systems and has become one of the guiding principles in the exploration of high- and low-energy physics.
Patrick Emonts, Ivan Kukuljan
doaj   +1 more source

On the joint distribution of the marginals of multipartite random quantum states

open access: yes, 2020
We study the joint distribution of the set of all marginals of a random Wishart matrix acting on a tensor product Hilbert space. We compute the limiting free mixed cumulants of the marginals, and we show that in the balanced asymptotical regime, the ...
Dartois, Stephane   +2 more
core   +2 more sources

Entangled subspaces and quantum symmetries [PDF]

open access: yes, 2004
Entanglement is defined for each vector subspace of the tensor product of two finite-dimensional Hilbert spaces, by applying the notion of operator entanglement to the projection operator onto that subspace.
Bracken, A. J.
core   +1 more source

Infinite rank solution for conformable degenerate abstract Cauchy problem in Hilbert spaces

open access: yesJournal of Mathematics and Computer Science, 2023
In this paper, we find an infinite rank solution of a conformable abstract Cauchy problem. The involved derivative is the conformable one. The main idea of the proofs are based on the theory of tensor product of Banach spaces.
F. Seddiki, M. Horani, Roshdi Khalil
semanticscholar   +1 more source

States of quantum systems and their liftings

open access: yes, 2000
Let H(1), H(2) be complex Hilbert spaces, H be their Hilbert tensor product and let tr2 be the operator of taking the partial trace of trace class operators in H with respect to the space H(2). The operation tr2 maps states in H (i.e.
Accardi   +9 more
core   +1 more source

Extended quantum conditional entropy and quantum uncertainty inequalities [PDF]

open access: yes, 2012
Quantum states can be subjected to classical measurements, whose incompatibility, or uncertainty, can be quantified by a comparison of certain entropies. There is a long history of such entropy inequalities between position and momentum.
C. Davis   +18 more
core   +3 more sources

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