Experimental preparation and manipulation of squeezed cat states via an all-optical in-line squeezer

Abstract

The squeezed cat state, an essential quantum resource, can be used for quantum error correction and slowing decoherence of the optical cat state. However, preparing a squeezed cat state with high generation rate, and effectively manipulating it, remain challenging. In this work, a high-performance all-optical in-line squeezer is developed to prepare a squeezed cat state and manipulate the phase of the quadrature squeezing. This scheme has the advantages that the phase of the quadrature squeezing of the squeezed cat state can be manipulated by changing the working condition of the squeezer, and that a higher generation rate can be achieved via the deterministic squeezing operation of the in-line squeezer. The generation rate of squeezed cat states reaches 2 kHz, the same as that of the initial cat state. The all-optical in-line squeezer proposed here removes the requirements of electro-optic and opto-electric conversions necessary for an off-line squeezer, thus enabling high-bandwidth squeezing operations on non-Gaussian states. These results provide an efficient method to prepare and manipulate optical squeezed cat states, which makes a step closer to their applications in all-optical quantum information processing.

arXiv commentPublished online in Laser & Photonics Reviews

References in corpus (38)

• Continuous-variable optical quantum state tomography
• Quantum computation with optical coherent states
• Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
• Generation of a superposition of odd photon number states for quantum information networks
• Quantum metrology with entangled coherent states
• Entangled coherent states: teleportation and decoherence
• Schroedinger cat-like states by conditional measurements on a beam-splitter
• Testing the limits of quantum mechanical superpositions
• Hybrid quantum information processing
• Efficient Quantum Computation using Coherent States
• Observation of multi-component atomic Schrödinger cat states of up to 20 qubits
• Fault-tolerant linear optical quantum computing with small-amplitude coherent states
• Generation of Optical Coherent State Superpositions by Number-Resolved Photon Subtraction from Squeezed Vacuum
• Observation of -9 dB quadrature squeezing with improvement of phase stability in homodyne measurement
• Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction
• Remote creation of hybrid entanglement between particle-like and wave-like optical qubits
• Teleportation of Nonclassical Wave Packets of light
• Entangling quantum and classical states of light
• Towards real-world quantum networks: a review
• Conditional Production of Superpositions of Coherent States with Inefficient Photon Detection
• Deterministic creation of entangled atom-light Schrödinger-cat states
• Breeding the optical Schroedinger's cat state
• Schrodinger cats and their power for quantum information processing
• Optical synthesis of large-amplitude squeezed coherent-state superpositions with minimal resources
• A scheme for quantum teleportation between discrete and continuous encodings of an optical qubit
• Exploring a new regime for processing optical qubits: squeezing and unsqueezing single photons
• Experimental demonstration of a Hadamard gate for coherent state qubits
• Slowing Quantum Decoherence by Squeezing in Phase Space
• Entanglement and teleportation between polarization and wave-like encodings of an optical qubit
• Amplification of realistic cat-like states by homodyne heralding
• Establishing and storing of deterministic quantum entanglement among three distant atomic ensembles
• Quantum tele-amplification with a continuous variable superposition state
• Minimum decoherence cat-like states in Gaussian noisy channels
• Cascaded Entanglement Enhancement
• Phase-sensitive Manipulations of Squeezed Vacuum Field in an Optical Parametric Amplifier inside an Optical Cavity
• Quantifying quantum coherence of optical cat states
• Deterministic and universal quantum squeezing gate in virtue of teleportation-like protocol
• Satellite-based Distribution of Hybrid Entanglement

Cited by in corpus (10)

• Error Correction Using Squeezed Fock States
• Overcoming the fundamental limit of quantum transduction via intraband entanglement
• Preparation of high fidelity entangled cat states with composite pulses
• Simultaneous preparation of two optical cat states based on a nondegenerate optical parametric amplifier
• Bosonic quantum error correction using squeezed Fock states
• Sequential and Programmable Squeezing Gates for Optical Non-Gaussian Input States
• Preparation of Schrödinger cat quantum state using parametric down-conversion interaction
• Nonlinear squeezing of superpositions of quadrature eigenstates
• Optical Quantum Computing
• A no-go result on observing quantum superpositions