期刊
PHYSICAL REVIEW A
卷 94, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.010301
关键词
-
资金
- Erwin Schrodinger Stipendium [J3653-N27]
- DFG
- ERC [683107/TempoQ, 267386]
- European Commission
- Spanish MINECO [FIS2008-01236, FIS2013-40627-P]
- FEDER funds
- Generalitat de Catalunya CIRIT [2014-SGR-966]
- Swiss National Science Foundation (SNF)
- National Centres of Competence in Research Quantum Science and Technology (QSIT)
- Juan de la Cierva fellowship [JCI 2012-14155]
- Swiss National Science Foundation [AMBIZIONE PZ00P2_161351]
- Austrian Science Fund (FWF) through the START Project [Y879-N27]
- European Research Council (ERC) [267386] Funding Source: European Research Council (ERC)
- Austrian Science Fund (FWF) [J3653] Funding Source: Austrian Science Fund (FWF)
We introduce a Hermitian generalization of Pauli matrices to higher dimensions which is based on Heisenberg-Weyl operators. The complete set of Heisenberg-Weyl observables allows us to identify a real-valued Bloch vector for an arbitrary density operator in discrete phase space, with a smooth transition to infinite dimensions. Furthermore, we derive bounds on the sum of expectation values of any set of anticommuting observables. Such bounds can be used in entanglement detection and we show that Heisenberg-Weyl observables provide a first nontrivial example beyond the dichotomic case.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据