Continuous-variable quantum key distribution with non-Gaussian quantum catalysis
arXiv:1811.06698 · doi:10.1103/PhysRevA.99.032327
Abstract
The non-Gaussian operation can be used not only to enhance and distill the entanglement between Gaussian entangled states, but also to improve quantum communications. In this paper, we propose an non-Gaussian continuous-variable quantum key distribution (CVQKD) by using quantum catalysis (QC), which is an intriguing non-Gaussian operation in essence that can be implemented with current technologies. We perform quantum catalysis on both ends of the Einstein-Podolsky-Rosen (EPR) pair prepared by a sender, Alice, and find that for the single-photon QC-CVQKD, the bilateral symmetrical quantum catalysis (BSQC) performs better than the single-side quantum catalysis (SSQC). Attributing to characteristics of integral within an ordered product (IWOP) of operators, we find that the quantum catalysis operation can improve the entanglement property of Gaussian entangled states by enhancing the success probability of non-Gaussian operation, leading to the improvement of the QC-CVQKD system. As a comparison, the QC-CVQKD system involving zero-photon and single-photon quantum catalysis outperforms the previous non-Gaussian CVQKD scheme via photon subtraction in terms of secret key rate, maximal transmission distance and tolerable excess noise.
12 pages, 11 figures
References in corpus (30)
- Quantum Cryptography
- Quantum information with continuous variables
- The Security of Practical Quantum Key Distribution
- Gaussian Quantum Information
- Continuous variable quantum cryptography using coherent states
- Quantum key distribution using gaussian-modulated coherent states
- General Benchmarks for Quantum Repeaters
- Fundamental Limits of Repeaterless Quantum Communications
- Experimental demonstration of long-distance continuous-variable quantum key distribution
- Unconditional optimality of Gaussian attacks against continuous-variable QKD
- Quantum key distribution over 25 km with an all-fiber continuous-variable system
- Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography
- Continuous-variable teleportation improvement by photon subtraction via conditional measurement
- Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation
- A de Finetti representation theorem for infinite dimensional quantum systems and applications to quantum cryptography
- Long Distance Continuous-Variable Quantum Key Distribution with a Gaussian Modulation
- Teleportation improvement by inconclusive photon subtraction
- Multidimensional reconciliation for continuous-variable quantum key distribution
- Continuous-Variable Measurement-Device-Independent Quantum Key Distribution
- A case study in programming a quantum annealer for hard operational planning problems
- Quantum-optical catalysis: generating "Schroedinger kittens" by means of linear optics
- Enhancing quantum entanglement for continuous variables by a coherent superposition of photon subtraction and addition
- Improving the maximum transmission distance of continuous-variable quantum key distribution using a noiseless amplifier
- Quantum Mechanics and the Generalized Uncertainty Principle
- Continuous-Variable Quantum Key Distribution with Entanglement in the Middle
- Non-Gaussian postselection and virtual photon subtraction in continuous-variable quantum key distribution
- Strategies for enhancing quantum entanglement by local photon subtraction
- Long-distance continuous-variable quantum key distribution using non-Gaussian state-discrimination detection
- Improve the Maximum Transmission Distance of Four-State Continuous Variable Quantum Key Distribution by using a Noiseless Linear Amplifier
- Source monitoring for continuous-variable quantum key distribution
Cited by in corpus (30)
- Advances in Quantum Cryptography
- Continuous-Variable Quantum Key Distribution with Rateless Reconciliation Protocol
- Consideration of success probability and performance optimization in non-Gaussian continuous variable quantum teleportation
- Improving phase estimation using the number-conserving operations
- Realistic non-Gaussian operations scheme in parity detection based Mach-Zehnder quantum interferometry
- Coherence assisted non-Gaussian measurement device independent quantum key distribution
- Enhanced phase estimation in parity detection based Mach-Zehnder interferometer using non-Gaussian two-mode squeezed thermal input state
- Non-Gaussian operations in measurement device independent quantum key distribution
- Parity-detection-based Mach-Zehnder interferometry with coherent and non-Gaussian squeezed vacuum states as inputs
- Multi-mode CV-QKD with Non-Gaussian Operations
- Quantum multiparameter estimation with multi-mode photon catalysis entangled squeezed state
- Global Entanglement Distribution with Multi-mode Non-Gaussian Operations
- Detecting Einstein-Podolsky-Rosen steering in non-Gaussian spin states from conditional spin-squeezing parameters
- Continuous variable quantum teleportation in a dissipative environment: Comparison of non-Gaussian operations before and after noisy channel
- Security bound of continuous-variable measurement-device-independent quantum key distribution with imperfect phase reference calibration
- Orbital angular momentum-enhanced phase estimation using non-Gaussian state with photon loss
- Performance optimization of continuous variable quantum teleportation with generalized photon-varying non-Gaussian operations
- Estimation of the set of states obtained in particle number measurement schemes
- Zero-photon catalysis based eight-state discrete modulated measurement-device-independent continuous-variable quantum key distribution
- Comparison of Controlled-Z operation and beam-splitter transformation for generation of squeezed Fock states by measurement
- Can we control the amount of useful nonclassicality in a photon added hypergeometric state?
- Multimode non-Gaussian secure communication under mode-mismatch
- Optimizing single-photon quantum radar detection through partially postselected filtering
- Re-examination of the role of displacement and photon catalysis operation in continuous variable measurement device-independent quantum key distribution
- Multi-mode CV-QKD with Noiseless Attenuation and Amplification
- No real advantage of photon subtraction and displacement in continuous variable measurement device independent quantum key distribution
- Isospectral oscillators as a resource for quantum information processing
- Enhanced Uplink Quantum Communication with Satellites via Downlink Channels
- Improvement of phase sensitivity in SU(1,1) interferometer via a Kerr nonlinear
- Enhancing discrete-modulated continuous-variable measurement-device-independent quantum key distribution via quantum catalysis