Results 31 to 40 of about 236 (46)

Private quantum codes: introduction and connection with higher rank numerical ranges

open access: yes, 2013
We give a brief introduction to private quantum codes, a basic notion in quantum cryptography and key distribution. Private code states are characterized by indistinguishability of their output states under the action of a quantum channel, and we show ...
Kribs, D. W., Plosker, S.
core   +1 more source

A Note on State Decomposition Independent Local Invariants

open access: yes, 2013
We derive a set of invariants under local unitary transformations for arbitrary dimensional quantum systems. These invariants are given by hyperdeterminants and independent from the detailed pure state decompositions of a given quantum state.
Fei, Shao-Ming   +4 more
core   +1 more source

Quantum computing classical physics [PDF]

open access: yes, 2001
In the past decade quantum algorithms have been found which outperform the best classical solutions known for certain classical problems as well as the best classical methods known for simulation of certain quantum systems.
Meyer, David A.
core   +3 more sources

Mosaic number of knots

open access: yes, 2014
Lomonaco and Kauffman developed knot mosaics to give a definition of a quantum knot system. This definition is intended to represent an actual physical quantum system.
Hong, Kyungpyo   +3 more
core   +1 more source

Unique decompositions, faces, and automorphisms of separable states

open access: yes, 2009
Let S_k be the set of separable states on B(C^m \otimes C^n) admitting a representation as a convex combination of k pure product states, or fewer. If m>1, n> 1, and k \le max(m,n), we show that S_k admits a subset V_k such that V_k is dense and open in ...
Erik Alfsen, Fred Shultz, Paulsen V.
core   +1 more source

Certified Quantum Computation in Isabelle/HOL. [PDF]

open access: yesJ Autom Reason, 2021
Bordg A, Lachnitt H, He Y.
europepmc   +1 more source

Stationary measure for two-state space-inhomogeneous quantum walk in one dimension

open access: yes, 2018
We consider the two-state space-inhomogeneous coined quantum walk (QW) in one dimension. For a general setting, we obtain the stationary measure of the QW by solving the eigenvalue problem.
Kawai, Hikari   +2 more
core  

Opial inequality in q-calculus. [PDF]

open access: yesJ Inequal Appl, 2018
Mirković TZ   +2 more
europepmc   +1 more source

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