Secure Communication Using Mesoscopic Coherent States

Abstract

We demonstrate theoretically and experimentally that secure communication using intermediate energy (mesoscopic) coherent states is possible. Our scheme is different from previous quantum cryptographic schemes in that a short secret key is explicitly used and in which quantum noise hides both the bit and the key. This encryption scheme can be optically amplified. new avenues are open to secure communications at high speeds in fiber-optic or free-space channels.

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Document Details

Document Type
Technical Report
Publication Date
Apr 17, 2003
Accession Number
ADA446503

Entities

People

  • Eric Corndorf
  • Geraldo A. Barbosa
  • Horace P. Yuen
  • Prem Kumar

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computers
  • Cryptography
  • Data Acquisition
  • Detection
  • Detectors
  • Electro-Optic Modulators
  • Electronic Mail
  • Information Operations
  • Intrusion Detection
  • Modulation
  • Multiple Access
  • Observation
  • Polarization
  • Quantum Computing
  • Quantum Noise
  • Secure Communications
  • Security Protocols

Fields of Study

  • Computer science
  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Radio communications and signal processing.
  • Tactical Satellite Communications Systems Engineering.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Key Distribution
  • Space