Adapting coherent-state superpositions in noisy channels
arXiv:2406.01081 · doi:10.1364/OE.555180
Abstract
Quantum non-Gaussian states are crucial for the fundamental understanding of non-linear bosonic systems and simultaneously advanced applications in quantum technologies. In many bosonic experiments the important quantum non-Gaussian feature is the negativity of the Wigner function, a cornerstone for quantum computation with bosons. Unfortunately, the negativities present in complex quantum states are extremely vulnerable to the effects of decoherence, such as energy loss, noise and dephasing, caused by the coupling to the environment, which is an unavoidable part of any experimental implementation. An efficient way to mitigate its effects is by adapting quantum states into more resilient forms. We propose an optimal protection of superpositions of coherent states against a sequence of asymmetric thermal lossy channels by suitable squeezing operations.
References in corpus (64)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- Array Programming with NumPy
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Quantum computational advantage using photons
- Encoding a qubit in an oscillator
- Quantum fingerprinting
- Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency
- Quantum computation with optical coherent states
- Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
- Observation of quantum state collapse and revival due to the single-photon Kerr effect
- Boson sampling with 20 input photons in 60-mode interferometers at state spaces
- Time-Domain Multiplexed 2-Dimensional Cluster State: Universal Quantum Computing Platform
- Positive Wigner functions render classical simulation of quantum computation efficient
- Universal Quantum Estimator
- Direct estimations of linear and non-linear functionals of a quantum state
- Deterministic generation of a two-dimensional cluster state
- Efficient Quantum Computation using Coherent States
- Encoding a qubit in a trapped-ion mechanical oscillator
- Fault-Tolerant Measurement-Based Quantum Computing with Continuous-Variable Cluster States
- Fault-tolerant linear optical quantum computing with small-amplitude coherent states
- Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer
- Non-Gaussian Quantum States and Where to Find Them
- Generation of large-amplitude coherent-state superposition via ancilla-assisted photon-subtraction
- Shortcuts to Adiabaticity for the Quantum Rabi Model: Efficient Generation of Giant Entangled cat States via Parametric Amplification
- Entanglement measures and the Hilbert-Schmidt distance
- All-Gaussian universality and fault tolerance with the Gottesman-Kitaev-Preskill code
- Remote generation of magnon Schrödinger cat state via magnon-photon entanglement
- Generating superposition of up-to three photons for continuous variable quantum information processing
- All-optical generation of states for "Encoding a qubit in an oscillator"
- Generating Grid States From Schrödinger Cat States without Post-Selection
- Measurement-Based Noiseless Linear Amplification for Quantum Communication
- Generation of optical Schrödinger's cat states by generalized photon subtraction
- A device for feasible fidelity, purity, Hilbert-Schmidt distance and entanglement witness measurements
- Noiseless loss suppression in quantum optical communication
- Connecting heterogeneous quantum networks by hybrid entanglement swapping
- Robust preparation of Wigner-negative states with optimized SNAP-displacement sequences
- Probing the negative Wigner function of a pulsed single photon point by point
- Exploring a new regime for processing optical qubits: squeezing and unsqueezing single photons
- Slowing Quantum Decoherence by Squeezing in Phase Space
- Quantum non-Gaussian Depth of Single-Photon States
- Remote preparation of continuous-variable qubits using loss-tolerant hybrid entanglement of light
- Demonstration of Einstein-Podolsky-Rosen Steering Using Hybrid Continuous- and Discrete-Variable Entanglement of Light
- Resources for bosonic quantum computational advantage
- Modular Bosonic Subsystem Codes
- Minimum decoherence cat-like states in Gaussian noisy channels
- 43-GHz bandwidth real-time amplitude measurement of 5-dB squeezed light using modularized optical parametric amplifier with 5G technology
- Resource-efficient and fault-tolerant topological quantum computation with hybrid entanglement of light
- Experimental realization of a dynamic squeezing gate
- Engineering optical hybrid entanglement between discrete- and continuous-variable states
- Benchmarking photon number resolving detectors
- Heralded noiseless amplification and attenuation of non-gaussian states of light
- Contextuality and Wigner negativity are equivalent for continuous-variable quantum measurements
- Measurement-based generation and preservation of cat and grid states within a continuous-variable cluster state
- Overcoming decoherence of cat-states formed in a cavity using squeezed-state inputs
- Optomechanical generation of a mechanical catlike state by phonon subtraction
- A quantum-bit encoding converter
- Quantum oscillator noise spectroscopy via displaced cat states
- Wave-function engineering via conditional quantum teleportation with non-Gaussian entanglement resource
- Phase Space Structure of Generalized Gaussian Cat States
- Cubic nonlinear squeezing and its decoherence
- Reduced decoherence using squeezing, amplification, and anti-squeezing
- Three-dimensional matter-wave interferometry of a trapped single ion
- Measuring non-linear functionals of quantum harmonic oscillator states
- Experimental quantum decoherence control by dark states of the environment