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Can foreign exchange rates violate Bell inequalities?
Hans De Raedt, Mikhail I. Katsnelson, Manpreet S. Jattana +5
The analysis of empirical data through model-free inequalities leads to the conclusion that violations of Bell-type inequalities by empirical data cannot have any significance unle…
Quantum dynamics of a small symmetry breaking measurement device
H. C. Donker, H. De Raedt, M. I. Katsnelson
A quantum measuring instrument is constructed that utilises symmetry breaking to enhance a microscopic signal. The entire quantum system consists of a system-apparatus-environment…
Decoherence and pointer states in small antiferromagnets: A benchmark test
H. C. Donker, H. De Raedt, M. I. Katsnelson
We study the decoherence process of a four spin-1/2 antiferromagnet that is coupled to an environment of spin-1/2 particles. The preferred basis of the antiferromagnet is discussed…
Decoherence by a spin thermal bath: Role of the spin-spin interactions
S. Yuan, M. I. Katsnelson, H. De Raedt
We study the decoherence of two coupled spins that interact with a spin-bath environment. It is shown that the connectivity and the coupling strength between the spins in the envir…