Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Frontiers in Optics

Single qubit preparation and quantum gates from third order nonlinear optics

Francisco A. Domínguez-Serna, Karina Garay-Palmett

Published Jan 1, 2020• 0 citations
Publisher

Abstract

We present a study on the preparation and manipulation of path-like temporal-mode qubits based on third-order nonlinear materials. Our study allows for experimentally feasible proposals, capable of controllable arbitrary qubit transformations.
DOI
10.1364/fio.2020.jm6a.25

Related papers

Quantum state preparation and one qubit logic from third-order nonlinear interactions

Francisco A. Domínguez-Serna, Karina Garay-Palmett

We present a study on preparing and manipulating temporal-mode (TM) qubits based on third-order nonlinear interactions. Specifically, we consider the process of frequency conversion via difference frequency generation. To prepare a qubit, we aim to use Gaussian input states to a nonlinear waveguide. The coupling between the input state and a specific TM is maximized, obtaining qubits prepared with fidelities close to one. TMs evolve linearly within the medium; therefore, it is possible to define rotations around any axis contained in the x y plane, allowing spanning the full Bloch sphere in two steps. Particularly, we present a method to obtain any of the Pauli quantum gates by varying geometric or user-accessible parameters in a given experimental configuration when time-ordering effects are ignored. Our study allows for experimentally feasible proposals capable of controllable arbitrary qubit transformations.

arXiv:2103.04022•Journal of the Optical Society of America B•Jun 22, 2021•2 citations

A Proposal for Nonlinear - Optics Based Quantum Gates in Integrated Photonic Circuits

A. L. Aguayo-Alvarado, A. Acevedo-Carrera, Francisco A. Domínguez-Serna +2 more

A proposal for the implementation of single-qubit quantum gates based on a third order nonlinear process in integrated quantum circuits is presented.

Frontiers in Optics•Jan 1, 2020•2 citations

A Programmable Single-Qubit Quantum Gate

A. L. Aguayo-Alvarado, Francisco A. Domínguez-Serna, W. De La Cruz +1 more

We present a design for an integrated single-qubit quantum gate based on the third order nonlinear process of difference frequency generation. A theoretical model is presented for the transformation of the qubit with device-external parameters.

•Jan 1, 2023•0 citations

A CNOT Proposal for Temporal-Mode Qubits Based on the Difference Frequency Generation Process

Francisco A. Domínguez-Serna

Multiple proposals exist for implementing quantum operations on light-based qubits. We propose a nonlinear optics approach using the Difference Frequency Generation process for probabilistic CNOT gates in color qubits, analogous to polarization-based operations [1].

Frontiers in Optics•Jan 1, 2023•0 citations

Programmable color qubit quantum gates

Ana Aguayo Alvarado, Francisco A. Domínguez-Serna, Ferney Castro-Simanca +2 more

We present a novel proposal for the implementation of temporal-modes quantum gates based on the third-order nonlinear process of difference frequency generation in an integrated photonic circuit, which allows switching from one Pauli gate to another by tuning the phase difference between the two pump pulses (in case of the $\sigma_{x}$ and $\sigma_{y}$ Pauli gates) and between the two states comprising the basis of single temporal-modes qubits (in the case of the $\sigma_{z}$ Pauli gate). We demonstrate that our proposal enables the preparation of any single temporal-mode qubit and rotations on the Bloch sphere by changing externally controllable parameters. We also analyze the effects of fabrication errors on the predicted quantum gate fidelity, finding that even if some waveguide parameter deviates from the design, slight tuning of pump wavelengths can lead to recovering high fidelity values.

Journal of the Optical Society of America B•Dec 23, 2024•2 citations

An integrated photonic circuit for color qubit preparation by third-order nonlinear interactions

A. L. Aguayo-Alvarado, Francisco A. Domínguez-Serna, W. de la Cruz +1 more

This work presents a feasible design of an integrated photonic circuit performing as a device for single-qubit preparation and rotations through the third-order nonlinear process of difference frequency generation (DFG) and defined in the temporal mode basis. The first stage of our circuit includes the generation of heralded single photons by spontaneous four-wave mixing in a micro-ring cavity engineered for delivering a single-photon state in a unique temporal mode. The second stage comprises the implementation of DFG in a spiral waveguide with controlled dispersion properties for reaching color qubit preparation fidelity close to unity. We present the generalized rotation operator related to the DFG process, a methodology for the device design, and qubit preparation fidelity results as a function of user-accessible parameters.

arXiv:2207.09537•Scientific Reports•Mar 25, 2022•9 citations
We present a study on preparing and manipulating temporal-mode (TM) qubits based on third-order nonlinear interactions. Specifically, we consider the process of frequency conversion via difference frequency generation. To prepare a qubit, we aim to use Gaussian input states to a nonlinear waveguide. The coupling between the input state and a specific TM is maximized, obtaining qubits prepared with fidelities close to one. TMs evolve linearly within the medium; therefore, it is possible to define rotations around any axis contained in the x y plane, allowing spanning the full Bloch sphere in two steps. Particularly, we present a method to obtain any of the Pauli quantum gates by varying geometric or user-accessible parameters in a given experimental configuration when time-ordering effects are ignored. Our study allows for experimentally feasible proposals capable of controllable arbitrary qubit transformations.
We present a novel proposal for the implementation of temporal-modes quantum gates based on the third-order nonlinear process of difference frequency generation in an integrated photonic circuit, which allows switching from one Pauli gate to another by tuning the phase difference between the two pump pulses (in case of the σx\sigma_{x}σx​ and σy\sigma_{y}σy​ Pauli gates) and between the two states comprising the basis of single temporal-modes qubits (in the case of the σz\sigma_{z}σz​ Pauli gate). We demonstrate that our proposal enables the preparation of any single temporal-mode qubit and rotations on the Bloch sphere by changing externally controllable parameters. We also analyze the effects of fabrication errors on the predicted quantum gate fidelity, finding that even if some waveguide parameter deviates from the design, slight tuning of pump wavelengths can lead to recovering high fidelity values.
This work presents a feasible design of an integrated photonic circuit performing as a device for single-qubit preparation and rotations through the third-order nonlinear process of difference frequency generation (DFG) and defined in the temporal mode basis. The first stage of our circuit includes the generation of heralded single photons by spontaneous four-wave mixing in a micro-ring cavity engineered for delivering a single-photon state in a unique temporal mode. The second stage comprises the implementation of DFG in a spiral waveguide with controlled dispersion properties for reaching color qubit preparation fidelity close to unity. We present the generalized rotation operator related to the DFG process, a methodology for the device design, and qubit preparation fidelity results as a function of user-accessible parameters.