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pro vyhledávání: '"Contreras, Daniel Uzcategui"'
The quantum marginal problem consists in deciding whether a given set of marginal reductions is compatible with the existence of a global quantum state or not. In this work, we formulate the problem from the perspective of dynamical systems theory an
Externí odkaz:
http://arxiv.org/abs/2209.14154
Autor:
Contreras, Daniel Uzcategui
In this thesis, we present optimization tools for different problems in quantum information theory. First, we introduce an algorithm for quantum estate estimation. The algorithm consists of orthogonal projections on intersecting hyperplanes, which ar
Externí odkaz:
http://arxiv.org/abs/2204.07625
Publikováno v:
J. Phys. A: Math. Theor. 54 085302 (2021)
We present an iterative method to solve the multipartite quantum state estimation problem. We demonstrate convergence for any informationally complete set of generalized quantum measurements in every finite dimension. Our method exhibits fast converg
Externí odkaz:
http://arxiv.org/abs/1912.05754
Publikováno v:
Communications in Mathematics 29 (2021) 15-34
It is known that a real symmetric circulant matrix with diagonal entries $d\geq0$, off-diagonal entries $\pm1$ and orthogonal rows exists only of order $2d+2$ (and trivially of order $1$) [Turek and Goyeneche 2019]. In this paper we consider a comple
Externí odkaz:
http://arxiv.org/abs/1910.00586
Akademický článek
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