Temporal correlation beyond quantum bounds in non-hermitian dynamics.

  title={Temporal correlation beyond quantum bounds in non-hermitian dynamics.},
  author={Anant V Varma and Ipsika Mohanty and Sourin Das},
  journal={arXiv: Quantum Physics},
We study the dynamics of two level systems described by non-hermitian Hamiltonians with real eigenvalues. Within the framework of hermitian quantum mechanics, it is known that maximal violation of Leggett-Garg inequality is bounded by $3/2$ (Luder's bound). We show that this absolute bound can be evaded when dynamics is governed by non-hermitian Hamiltonians. Moreover, the extent of violation can be optimized to reach its algebraic maximum of $3$ which is otherwise only feasible when the… 
1 Citations

Figures from this paper

The internal nonlocality in $\cal PT$-symmetric systems
In this paper, we investigate the properties of $\cal PT$-symmetric quantum systems, proposing a new way to illustrate its novelty and measure its departure from classical and Hermitian quantum


Linear Operators For Quantum Mechanics
The linear operators for quantum mechanics is universally compatible with any devices to read and is available in the book collection an online access to it is set as public so you can download it instantly.
Geometric Phases in Classical and Quantum Mechanics
Preface - Mathematical background - Adiabatic phases in quantum mechanics - Adiabatic phases in classical mechanics - Geometric approach to classical phases - Geometry of quantum evolution -
A new language, Opt, is proposed for writing these objective functions over image- or graph-structured unknowns concisely and at a high level and automatically transforms these specifications into state-of-the-art GPU solvers based on Gauss-Newton or Levenberg-Marquardt methods.
however (for it was the literal soul of the life of the Redeemer, John xv. io), is the peculiar token of fellowship with the Redeemer. That love to God (what is meant here is not God’s love to men)
The results in this initial report show that the COVID-19 infection in liver transplant recipients has a benign course, without greatly affecting the liver graft and there was no need to make important changes in the immunosuppressive scheme.
A 20 By
Although cannabis use was associated with an elevated risk of suicide, adjustment for markers of psychological and behavioural problems eliminated the association.
! " ! " " 9
A fired from a pistol at anti-CAA protesters at Jamia, injuring a Jamia Millia Islamia student, before walking away while brandishing the firearm aloft and shouting “Yeh lo aazadi” amid heavy police
Wei Yi
  • and P. Xue, Phys. Rev. Lett. 123, 230401
  • 2019
  • Rev. Lett. 109, 230405
  • 2012
  • Rev. Lett. 65, 1697
  • 1990