Entanglement witnessing and quantum cryptography with nonideal ferromagnetic detectors

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Entanglement and Quantum Cryptography

Quantum cryptography is one of the most important quantum information applications. The present thesis covers several topics on quantum cryptography, such as the security analysis of quantum channels for key distribution protocols and the study of quantum cloning. First, we introduce a general formalism to characterize the cryptographic properties of quantum channels in the realistic scenario w...

متن کامل

Quantum cryptography with interferometric quantum entanglement

We provide a theoretical analysis of a quantum interferometric method in quantum cryptography based on the non-local nature of quantum entanglement which is currently being implemented in the laboratory . 1 . Introduction In recent years quantum mechanics has provided a new approach and new tools to solve the problem of secure communications as well as other tasks of modern cryptography [1] . T...

متن کامل

Nonideal quantum detectors in Bayesian formalism

The Bayesian formalism for a continuous measurement of solid-state qubits is extended to a model which takes into account several factors of the detector nonideality. In particular, we consider additional classical output and backaction noises ~with finite correlation!, together with quantum-limited output and backaction noises, and take into account possible asymmetry of the detector coupling....

متن کامل

Double entanglement and quantum cryptography

We propose a quantum transmission based on bi-photons which are doubly-entangled both in polarisation and phase. This scheme finds a natural application in quantum cryptography, where we show that an eventual eavesdropper is bound to introduce a larger error on the quantum communication than for a single entangled bi-photon communication, when he steels the same information.

متن کامل

Entangled-coherent-state quantum key distribution with entanglement witnessing

David S. Simon,1,2 Gregg Jaeger,2,3 and Alexander V. Sergienko2,4,5 1Department of Physics and Astronomy, Stonehill College, 320 Washington Street, Easton, Massachusetts 02357, USA 2Department of Electrical and Computer Engineering, Boston University, 8 Saint Mary’s Street, Boston, Massachusetts 02215, USA 3Division of Natural Sciences and Mathematics, Boston University, Boston, Massachusetts 0...

متن کامل

ذخیره 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: Physical Review B

سال: 2014

ISSN: 1098-0121,1550-235X

DOI: 10.1103/physrevb.89.125404