Experimental Implementation of a Quantum Optical State Comparison Amplifier
arXiv:1404.4277 · doi:10.1103/PhysRevLett.114.120505
Abstract
Quantum optical amplification that beats the noise addition limit for deterministic amplifiers has been realized experimentally using several different nondeterministic protocols. These schemes either require single-photon sources, or operate by noise addition and photon subtraction. Here we present an experimental demonstration of a protocol that allows nondeterministic amplification of known sets of coherent states with high gain and high fidelity. The experimental system employs the two mature quantum optical technologies of state comparison and photon subtraction and does not rely on elaborate quantum resources such as single-photon sources. The use of coherent states rather than single photons allows for an increased rate of amplification and a less complex photon source. Furthermore it means that the amplification is not restricted to low amplitude states. With respect to the two key parameters, fidelity and amplified state production rate, we demonstrate, without the use of quantum resources, significant improvements over previous experimental implementations.
21 pages, 4 figures
References in corpus (23)
- Reference frames, superselection rules, and quantum information
- Non-gaussian statistics from individual pulses of squeezed light
- Noiseless Linear Amplification and Distillation of Entanglement
- Proposal for Implementing Device-Independent Quantum Key Distribution based on a Heralded Qubit Amplification
- A high-fidelity noiseless amplifier for quantum light states
- Implementation of a non-deterministic optical noiseless amplifier
- Experimental demonstration of quantum digital signatures using phase-encoded coherent states of light
- Noise-Powered Probabilistic Concentration of Phase Information
- Realization of Quantum Digital Signatures without the requirement of quantum memory
- Engineering quantum operations on traveling light beams by multiple photon addition and subtraction
- Heralded photon amplification for quantum communication
- Coherent-state phase concentration by quantum probabilistic amplification
- Quantum key distribution system clocked at 2 GHz
- Efficient Heralding of Photonic Qubits with Apllications to Device Independent Quantum Key Distribution
- Unambiguous comparison of the states of multiple quantum systems
- Programmable discriminator of coherent states - experimental realization
- Probabilistic Cloning of Coherent States without a Phase Reference
- Unambiguous coherent state identification: Searching a quantum database
- Quantum Optical State Comparison Amplifier
- Nondeterministic Amplifier for Two Photon Superpositions
- Optical amplifier-powered quantum optical amplification
- A complete characterisation of the heralded noiseless amplification of photons
- Truly noiseless probabilistic amplification
Cited by in corpus (14)
- Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states
- Long-distance continuous-variable quantum key distribution with quantum scissors
- Discrete-modulation continuous-variable quantum key distribution enhanced by quantum scissors
- Noiseless attenuation using an optical parametric amplifier
- Adaptive loop-based subtraction of a single photon from a traveling beam of light
- Thermal state truncation by using quantum scissors device
- Noiseless linear amplification in quantum target detection using Gaussian states
- Efficient verification of entangled continuous-variable quantum states with local measurements
- Models of reduced-noise, probabilistic linear amplifiers
- Experimental noiseless linear amplification using weak measurements
- Deterministic amplification of Schroedinger cat states in circuit quantum electrodynamics
- Experimental triple-slit interference in a strongly-driven V-type artificial atom
- Parity-Swap State Comparison Amplifier for Schrödinger Cat States
- Noiseless Loss Suppression for Entanglement Distribution