Optimization Over Trace Polynomials
Optimization Over Trace Polynomials
复制标题
迹多项式的优化
DOI:
10.1007/s00023-021-01095-4
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Volčič, Jurij
中科院分区:
文献类型:
--
作者:
Klep, Igor;Magron, Victor;Volčič, Jurij
Motivated by recent progress in quantum information theory, this article aims at optimizing trace polynomials, i.e., polynomials in noncommuting variables and traces of their products. A novel Positivstellensatz certifying positivity of trace polynomials subject to trace constraints is presented, and a hierarchy of semidefinite relaxations converging monotonically to the optimum of a trace polynomial subject to tracial constraints is provided. This hierarchy can be seen as a tracial analog of the Pironio, Navascués and Acín scheme (Pironio et al. in New J. Phys. 10(7):073013, 2008) for optimization of noncommutative polynomials. The Gelfand–Naimark–Segal (GNS) construction is applied to extract optimizers of the trace optimization problem if flatness and extremality conditions are satisfied. These conditions are sufficient to obtain finite convergence of our hierarchy. The results obtained are applied to violations of polynomial Bell inequalities in quantum information theory. The main techniques used in this paper are inspired by real algebraic geometry, operator theory, and noncommutative algebra.
登录
查看更多内容
影响因子:
1.5
作者:
Bardet Ivan;Collins Benoit;Sapra Gunjan
通讯作者:
Sapra Gunjan
影响因子:
3
作者:
S. Gribling;David de Laat;M. Laurent
通讯作者:
M. Laurent
影响因子:
2.4
作者:
M. Fukuda;I. Nechita
通讯作者:
I. Nechita
DOI:
10.1007/s00023-017-0569-y
发表时间:
2017
期刊:
Annales Henri Poincaré
影响因子:
--
作者:
Fumio Hiai;Robert König;Marco Tomamichel
通讯作者:
Marco Tomamichel
DOI:
10.4153/cjm-2015-055-7
发表时间:
2014
期刊:
Canadian Journal of Mathematics
影响因子:
--
作者:
I. Klep;S. Spenko
通讯作者:
S. Spenko