Journal
ANNALEN DER PHYSIK
Volume 530, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/andp.201800080
Keywords
entropic uncertainty; Hawking radiation; quantum discord; Schwarzschild space-time
Categories
Funding
- NNSFC [61601002, 11575001]
- CAS Key Laboratory of Quantum Information [KQI201701]
- Anhui Provincial Natural Science Foundation [1508085QF139]
Ask authors/readers for more resources
The Heisenberg uncertainty principle describes a basic restriction on an observer's ability of precisely predicting the measurement of a pair of noncommuting observables, and virtually is at the core of quantum mechanics. Herein, the aim is to study the entropic uncertainty relation (EUR) under the background of a Schwarzschild black hole and its control. Explicitly, dynamical features of the measuring uncertainty via entropy are developed in a practical model where a stationary particle interacts with its surrounding environment while another particleserving as a quantum memory reservoirundergoes free fall in the vicinity of the event horizon of the Schwarzschild space-time. It shows higher Hawking temperatures would give rise to an inflation of the entropic uncertainty on the measured particle. This is suggestive of the fact the measurement uncertainty is strongly correlated with degree of mixing present in the evolving particles. Additionally, based on information flow theory, a physical interpretation for the observed dynamical behaviors related with the entropic uncertainty in such a genuine scenario is provided. Finally, an efficient strategy is proposed to reduce the uncertainty by non-tracing-preserved operations. Therefore, our explorations may improve the understanding of the dynamic entropic uncertainty in a curved space-time, and illustrate predictions of quantum measurements in relativistic quantum information sciences.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available