Results 61 to 70 of about 291,666 (209)

A New Mechanism of Open System Evolution and Its Entropy Using Unitary Transformations in Noncomposite Qudit Systems

open access: yesEntropy, 2019
The evolution of an open system is usually associated with the interaction of the system with an environment. A new method to study the open-type system evolution of a qubit (two-level atom) state is established. This evolution is determined by a unitary
Julio A. López-Saldívar   +3 more
doaj   +1 more source

Unitary representability of free abelian topological groups

open access: yesApplied General Topology, 2008
For every Tikhonov space X the free abelian topological group A(X) and the free locally convex vector space L(X) admit a topologically faithful unitary representation. For compact spaces X this is due to Jorge Galindo.
Vladimir V. Uspenskij
doaj   +1 more source

Quantum dense coding by spatial state entanglement

open access: yes, 2003
We have presented a theoretical extended version of dense coding protocol using entangled position state of two particles shared between two parties.
A.T. Rezakhani   +23 more
core   +2 more sources

Casting Rubik’s Group into a Unitary Representation for Reinforcement Learning [PDF]

open access: diamond, 2023
Sebastiano Corli   +3 more
openalex   +1 more source

Unitary Quasi-finite Representations of W∞

open access: yesLetters in Mathematical Physics, 2000
\textit{H. Awata, M. Fukuma, Y. Matsuo} and \textit{S. Odake} [J. Phys. A 28, 105-112 (1995; Zbl 0852.17025)] developed a theory of quasi-finite highest-weight representations of the subalgebras \(W_{\infty, p}\) (\(p\in\mathbb C[x]\)) of \(W_{1+\infty}\), the most important being \(W_{\infty}=W_{\infty, x}\).
Kac, Victor, Liberati, Jose Ignacio
openaire   +3 more sources

Minimal unitary representation of 5d superconformal algebra F(4) and AdS6/CFT5 higher spin (super)-algebras

open access: yesNuclear Physics B, 2015
We study the minimal unitary representation (minrep) of SO(5,2), obtained by quantization of its geometric quasiconformal action, its deformations and supersymmetric extensions.
Sudarshan Fernando, Murat Günaydin
doaj   +1 more source

Representations of posets: Linear versus Unitary

open access: yes, 2012
A number of recent papers treated the representation theory of partially ordered sets in unitary spaces with the so called orthoscalar relation. Such theory generalizes the classical theory which studies the representations of partially ordered sets in ...
Futorny, Vyacheslav   +2 more
core   +1 more source

Weil Representations of Unitary Groups

open access: yesJournal of Algebra, 1999
It is well known that the finite unitary group \(\text{U}_n(q)\), where \(q\) is a positive integral power of a prime \(p\), has a complex representation of degree \(q^n\). This representation may be normalized so that it has determinant \(1\) on each group element.
openaire   +2 more sources

Symmetric mixed states of $n$ qubits: local unitary stabilizers and entanglement classes

open access: yes, 2011
We classify, up to local unitary equivalence, local unitary stabilizer Lie algebras for symmetric mixed states into six classes. These include the stabilizer types of the Werner states, the GHZ state and its generalizations, and Dicke states. For all but
C. D. Cenci   +4 more
core   +1 more source

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