Quantum key distribution with bright entangled beams

Abstract

We suggest a quantum cryptographic scheme using continuous EPR-like correlations of bright optical beams. For binary key encoding, the continuous information is discretized in a novel way by associating a respective measurement, amplitude or phase, with a bit value "1" or "0". The secure key distribution is guaranteed by the quantum correlations. No pre-determined information is sent through the quantum channel contributing to the security of the system.

4 pages, 1 figure, 1 table

References in corpus (2)

• Generation of Continuous Variable Einstein-Podolsky-Rosen Entanglement via the Kerr Nonlinearity in an Optical Fibre
• No-cloning theorem and teleportation criteria for quantum continuous variables

Cited by in corpus (65)

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• Quantum key distribution using gaussian-modulated coherent states
• The Einstein-Podolsky-Rosen paradox: from concepts to applications
• The characterization of Gaussian operations and Distillation of Gaussian States
• Quantum Cryptography without Switching
• Continuous Variable Quantum Cryptography - beating the 3 dB loss limit
• A de Finetti representation theorem for infinite dimensional quantum systems and applications to quantum cryptography
• Distributing Secret Keys with Quantum Continuous Variables: Principle, Security and Implementations
• Polarization squeezing and continuous-variable polarization entanglement
• On-Chip Optical Squeezing
• Generation of Bright Two-Color Continuous Variable Entanglement
• No-Switching Quantum Key Distribution using Broadband Modulated Coherent Light
• Reconciliation of a Quantum-Distributed Gaussian Key
• Continuous-variable quantum key distribution protocols over noisy channels
• Continuous variable quantum key distribution in non-Markovian channels
• Unified criteria for multipartite quantum nonlocality
• Monogamy inequalities for the EPR paradox and quantum steering
• Three-mode entanglement by interlinked nonlinear interactions in optical ${\chi }^{(2)}$ media
• Trusted Noise in Continuous-Variable Quantum Key Distribution: a Threat and a Defense
• On Secure Quantum Key Distribution Using Continuous Variables of Single Photons
• High-bandwidth squeezed light at 1550 nm from a compact monolithic PPKTP cavity
• Critical fluctuations and entanglement in the nondegenerate parametric oscillator
• Efficiency of coherent state quantum cryptography in the presence of loss: Influence of realistic error correction
• Squeezed-state quantum key distribution upon imperfect reconciliation
• Security of coherent state quantum cryptography in the presence of Gaussian noise
• Detecting faked continuous variable entanglement using one-sided device-independent entanglement witnesses
• Entanglement concentration of continuous variable quantum states
• Security of Quantum Key Distribution with Coherent States and Homodyne Detection
• Entanglement in the above-threshold optical parametric oscillator
• Efficient entanglement concentration for arbitrary less-entangled N-atom state
• Continuous variable quantum key distribution based on optical entangled states without signal modulation
• Bichromatic Local Oscillator for Detection of Two-Mode Squeezed States of Light
• Sub shot noise phase quadrature measurement of intense light beams
• Dynamical preparation of EPR entanglement in two-well Bose-Einstein condensates
• Deterministic Secure Communications using Two-Mode Squeezed States
• Multiphoton communication in lossy channels with photon-number entangled states
• Finding and breaking the realistic rate-distance limit of continuous variable quantum key distribution
• Continuous-variable entanglement of two bright coherent states that never interacted
• Dense-coding quantum key distribution based on continuous-variable entanglement
• Entangled light in transition through the generation threshold
• Quantum correlations in the soliton collisions
• Continuous-variable quantum communication
• Generation of photon-number entangled soliton pairs through interactions
• Quantum Cloning of Continuous Variable Entangled States
• Evolution of twin-beam in active optical media
• Towards an Einstein-Podolsky-Rosen paradox between two macroscopic atomic ensembles at room temperature
• Quantum correlations in bound-soliton pairs and trains in fiber lasers
• Computational Complexity of Continuous Variable Quantum Key Distribution
• Displacement-enhanced continuous-variable entanglement concentration
• Deterministic Quantum Key Distribution Using Gaussian-Modulated Squeezed States
• Entangling the whole by beam splitting a part
• Secure Coherent-state Quantum Key Distribution Protocols with Efficient Reconciliation
• Dependence of quantum correlations of twin beams on pump finesse of optical parametric oscillator
• Improved storage of coherent and squeezed states in imperfect ring cavity
• Entanglement in the Bogoliubov vacuum
• Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers
• Rotation Based Slice Error Correction Protocol for Continuous-variable Quantum Key Distribution and its Implementation with Polar Codes
• Generation of Correlated Quantum Random Number Sequences with Bright Twin Beams
• Entanglement in the bimodal Jaynes-Cummings model with the two-mode squeezed vacuum state
• Quantum properties of a superposition of squeezed displaced two-mode vacuum and single-photon states
• Continuous variable entanglement measurement without phase locking
• Validation of entanglement purification by continuous variable polarization
• High Efficient Secret Key Distillation for Long Distance Continuous Variable Quantum Key Distribution
• Generation and Manipulation of Entanglement in Quantum Optical Systems
• Novel Reconciliation Protocol Based on Spinal Code for Continuous-variable Quantum Key Distribution