Continuous variable quantum key distribution based on optical entangled states without signal modulation
arXiv:1109.2495 · doi:10.1209/0295-5075/87/20005
Abstract
In this paper, we present the first experimental demonstration on continuous variable quantum key distribution using determinant Einstein-Podolsky-Rosen entangled states of optical field. By means of the instantaneous measurements of the quantum fluctuations of optical modes respectively distributed at sender and receiver, the random bits of secret key are obtained without the need for signal modulation. The post-selection boundaries for the presented entanglement-based scheme against both Gaussian collective and individual attacks are theoretically concluded. The final secret key rates of 84 kbits/s and 3 kbits/s are completed under the collective attack for the transmission efficiency of 80% and 40%, respectively.
References in corpus (29)
- Quantum Cryptography
- Continuous variable quantum cryptography using coherent states
- Quantum key distribution using gaussian-modulated coherent states
- Continuous variable quantum cryptography
- Quantum key distribution over 25 km with an all-fiber continuous-variable system
- Quantum cryptography with squeezed states
- Quantum Dense Coding Exploiting Bright EPR Beam
- Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation
- Quantum Distribution of Gaussian Keys with Squeezed States
- 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
- Entanglement as precondition for secure quantum key distribution
- Continuous Variable Quantum Cryptography using Two-Way Quantum Communication
- Secure quantum key distribution using squeezed states
- No-Switching Quantum Key Distribution using Broadband Modulated Coherent Light
- Experimental Demonstration of Unconditional Entanglement Swapping for Continuous Variables
- Experimental study on Gaussian-modulated coherent states quantum key distribution over standard telecom fiber
- Virtual Entanglement and Reconciliation Protocols for Quantum Cryptography with Continuous Variables
- Quantum cryptography with a predetermined key, using continuous variable Einstein-Podolsky-Rosen correlations
- Collective attacks and unconditional security in continuous variable quantum key distribution
- Quantum key distribution with bright entangled beams
- Security bounds for continuous variables quantum key distribution
- Efficiency of coherent state quantum cryptography in the presence of loss: Influence of realistic error correction
- A practical limitation for continuous-variable quantum cryptography using coherent states
- Time domain Einstein-Podolsky-Rosen correlation
- Security of Quantum Key Distribution with Coherent States and Homodyne Detection
- Dense-coding quantum key distribution based on continuous-variable entanglement
- Experimental demonstration of time coding quantum key distribution
- Reduced randomness in quantum cryptography with sequences of qubits encoded in the same basis
Cited by in corpus (14)
- Continuous variable quantum key distribution with two-mode squeezed states
- Continuous-variable quantum key distribution system: past, present, and future
- Trusted Noise in Continuous-Variable Quantum Key Distribution: a Threat and a Defense
- High-bandwidth squeezed light at 1550 nm from a compact monolithic PPKTP cavity
- Experimental realization of three-color entanglement at optical fiber communication and atomic storage wavelengths
- Squeezing-enhanced quantum key distribution over atmospheric channels
- Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier
- Gaussian entanglement in the turbulent atmosphere
- Continuous-wave non-classical light with GHz squeezing bandwidth
- Continuous-variable quantum communication
- Multi-channel entanglement distribution using spatial multiplexing from four-wave mixing in atomic vapor
- Using Cascade in Quantum Key Distribution
- Advances in Continuous Variable Measurement-Device-Independent Quantum Key Distribution
- A Survey on Continuous Variable Quantum Key Distribution for Secure Data Transmission: Toward the Future of Secured Quantum-Networks