منابع مشابه
Entanglement with phase decoherence
The system of an atom couples to two distinct optical cavities with phase decoherence is studied by making use of a dynamic algebraic method. We adopt the concurrence to characterize the entanglement between atom and cavities or between two optical cavities in the presence of the phase decoherence. It is found that the entanglement between atom and cavities can be controlled by adjusting the de...
متن کاملDoes quantum entanglement in DNA synchronize the catalytic centers of type II restriction endonucleases?
P. Kurian, G. Dunston, J. Lindesay 1. Department of Physics and Astronomy, Howard University, Washington, District of Columbia 20059 2. Computational Physics Laboratory, Howard University, Washington, District of Columbia 20059 3. National Human Genome Center, Howard University College of Medicine, Washington, District of Columbia 20059 4. Department of Microbiology, Howard University College o...
متن کاملEntanglement of separate nitrogen-vacancy centers coupled to a whispering-gallery mode cavity
We present a quantum electrodynamical model involving nitrogenvacancy centers coupled to a whispering-gallery mode cavity. We consider two schemes to create the W state and Bell state, respectively. One scheme makes use of Raman transition with the cavity field virtually excited, and the other enables Bell state preparation and quantum information transfer by virtue of dark state evolution and ...
متن کاملDetecting entanglement of random states with an entanglement witness
The entanglement content of high-dimensional random pure states is almost maximal, nevertheless, we show that, due to the complexity of such states, the detection of their entanglement using witness operators is rather difficult. We discuss the case of unknown random states, and the case of known random states for which we can optimize the entanglement witness. Moreover, we show that coarse gra...
متن کاملSplitting information securely with entanglement
Although many quantum security tools have been proposed, many of them are quantum secret key distribution protocols. However, we naturally wish to construct quantum cryptosystems different from the conventional cryptosystems. In this paper, first, we show simple methods with prior entanglement in order to split a party’s message among some parties securely. Moreover, as an application, we also ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2016
ISSN: 1029-8479
DOI: 10.1007/jhep01(2016)070