Eavesdropping on a quantum channel with a unitarily interacting probe

Raina, Ankur and Srinivasa, Shayan Garani (2015) Eavesdropping on a quantum channel with a unitarily interacting probe. In: IEEE Globecom Workshops (GC Wkshps), DEC 06-10, 2015, San Diego, CA.

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Abstract

Eavesdropper tapping communication links is a common problem encountered in communication systems. The famous no cloning theorem and the uncertainity principle are instrumental in ensuring secrecy of classical information when transmitted using quantum states. With Wyner's wiretap channel as motivation, we study the effect of a unitarily interacting probe on the extraction of information by an eavesdropper. We motivate the theoretical results by considering a practical example of a unitary interaction between the transmitted qubit and the probe used by an eavesdropper. The role played by entanglement is also studied in the setting of single shot communication between sender and receiver nodes.

Item Type:	Conference Proceedings
Additional Information:	Copy right of this article belongs to the IEEE
Department/Centre:	Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Date Deposited:	08 Oct 2016 06:47
Last Modified:	08 Oct 2016 06:47
URI:	http://eprints.iisc.ac.in/id/eprint/54762

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