Enhancing quantum cryptography with quantum dot single-photon sources
arXiv:2204.11734 · doi:10.1038/s41534-022-00626-z
Abstract
Quantum cryptography harnesses quantum light, in particular single photons, to provide security guarantees that cannot be reached by classical means. For each cryptographic task, the security feature of interest is directly related to the photons' non-classical properties. Quantum dot-based single-photon sources are remarkable candidates, as they can in principle emit deterministically, with high brightness and low multiphoton contribution. Here, we show that these sources provide additional security benefits, thanks to the tunability of coherence in the emitted photon-number states. We identify the optimal optical pumping scheme for the main quantum-cryptographic primitives, and benchmark their performance with respect to Poisson-distributed sources such as attenuated laser states and down-conversion sources. In particular, we elaborate on the advantage of using phonon-assisted and two-photon excitation rather than resonant excitation for quantum key distribution and other primitives. The presented results will guide future developments in solid-state and quantum information science for photon sources that are tailored to quantum communication tasks.
References in corpus (60)
- Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
- Decoy State Quantum Key Distribution
- Secure quantum key distribution with realistic devices
- Continuous variable quantum cryptography using coherent states
- Near optimal single photon sources in the solid state
- Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
- Security Aspects of Practical Quantum Cryptography
- On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar
- Experimental demonstration of long-distance continuous-variable quantum key distribution
- Secure quantum key distribution over 421 km of optical fiber
- Near-unity coupling efficiency of a quantum emitter to a photonic-crystal waveguide
- A bright and fast source of coherent single photons
- On-demand semiconductor single-photon source with near-unity indistinguishability
- On-demand generation of indistinguishable polarization-entangled photon pairs
- Experimental realisation of Shor's quantum factoring algorithm using qubit recycling
- On-demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability
- Lower and upper bounds on the secret key rate for QKD protocols using one--way classical communication
- High Purcell factor generation of coherent on-chip single photons
- Scalable integrated single-photon source
- On-demand generation of background--free single photons from a solid-state source
- Quantum Cryptography Beyond Quantum Key Distribution
- Quantum Communication Using Semiconductor Quantum Dots
- Experimental demonstration of graph-state quantum secret sharing
- Unambiguous state discrimination in quantum cryptography with weak coherent states
- Quantum dot single photon sources with ultra-low multi-photon probability
- Quantum cryptography with highly entangled photons from semiconductor quantum dots
- Bright Polarized Single-Photon Source Based on a Linear Dipole
- Long-distance distribution of atom-photon entanglement at telecom wavelength
- Source attack of decoy-state quantum key distribution using phase information
- Phonon-assisted two-photon interference from remote quantum emitters
- Factoring 2048-bit RSA Integers in 177 Days with 13436 Qubits and a Multimode Memory
- Experimental bit commitment based on quantum communication and special relativity
- Discrete-phase-randomized coherent state source and its application in quantum key distribution
- Introduction to the Absolute Brightness and Number Statistics in Spontaneous Parametric Down-Conversion
- Coherently driving a single quantum two-level system with dichromatic laser pulses
- Generation of non-classical light in a photon-number superposition
- Bright Purcell enhanced single-photon source in the telecom O-band based on a quantum dot in a circular Bragg grating
- Anonymity for practical quantum networks
- Tailoring solid-state single-photon sources with stimulated emissions
- Experimental implementation of bit commitment in the noisy-storage model
- Experimental unconditionally secure bit commitment
- Experimental plug&play quantum coin flipping
- Evaluation of the phase randomness of the light source in quantum key distribution systems with an attenuated laser
- Experimental investigation of practical unforgeable quantum money
- Flipping quantum coins
- Emission-frequency separated high quality single-photon sources enabled by phonons
- Efficient room-temperature molecular single-photon sources for quantum key distribution
- GHz-clocked teleportation of time-bin qubits with a telecom C-band quantum dot
- Stimulated generation of indistinguishable single photons from a quantum ladder system
- Nonlinear cavity feeding and unconventional photon statistics in solid-state cavity QED revealed by many-level real-time path-integral calculations
- Pulsed Rabi oscillations in quantum two-level systems: beyond the Area Theorem
- Double-Pulse Generation of Indistinguishable Single Photons with Optically Controlled Polarization
- Quantum key distribution system in standard telecommunications fiber using a short wavelength single-photon source
- Path-integral approach for nonequilibrium multi-time correlation functions of open quantum systems coupled to Markovian and non-Markovian environments
- Experimental preparation and verification of quantum money
- Semi-device-independent quantum money with coherent states
- Multiphoton and side-channel attacks in mistrustful quantum cryptography
- Quantum weak coin flipping with a single photon
- Quantum key distribution with entangled photons generated on-demand by a quantum dot
- Practical quantum tokens without quantum memories and experimental tests
Cited by in corpus (4)
- Single-emitter quantum key distribution over 175 km of fiber with optimised finite key rates
- Efficient room-temperature molecular single-photon sources for quantum key distribution
- Device Independent Quantum Key Distribution with realistic single-photon source implementations
- Eliminating temporal correlation in quantum-dot entangled photon source by quantum interference