Quantum Photonic Gates with Two-Dimensional Random Walkers
- URL: http://arxiv.org/abs/2410.01592v1
- Date: Wed, 2 Oct 2024 14:26:05 GMT
- Title: Quantum Photonic Gates with Two-Dimensional Random Walkers
- Authors: S. Ali Hassani Gangaraj, Dan T Nguyen,
- Abstract summary: We introduce new design of quantum photonic gates that operate based on continuous time two-dimensional random walking photons.
These gates can be implemented using the inverse design method, where photons randomly walk in a two-dimensional silicon host medium embedded with silicon dioxide scatterers.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum gates are essential elements for processing quantum information. However, realizing them in a photonic platform is challenging due to the unique way photons propagate and interfere. In this study, we introduce new design of quantum photonic gates that operate based on continuous time two-dimensional random walking photons. These gates can be implemented using the inverse design method, where photons randomly walk in a two-dimensional silicon host medium embedded with silicon dioxide scatterers. We propose a C-NOT gate as a multiqubit gate and an X-gate as a single qubit gate. We will also provide numerical demonstrations of the gate operations using quantum formalism. Additionally, our investigation involves studying the non-trivial spatial correlations of random walking photons by utilizing the quantum correlation function. The results demonstrate high-fidelity probabilistic quantum gates. Further work is required to address error-correction. This work advances the practical implementation of integrated photonics in linear quantum optics.
Related papers
- Experimental realization of universal quantum gates and six-qubit state
using photonic quantum walk [2.331828779757202]
We report the experimental realize of universal set of quantum gates using photonic quantum walk.
We encode multiple qubits using polarization and paths degree of freedom for photon and demonstrate realization of universal set of gates with 100% success probability.
This work marks a significant progress towards using photonic quantum walk for quantum computing.
arXiv Detail & Related papers (2024-03-11T12:32:22Z) - Super-compact universal quantum logic gates with inversedesigned
elements [11.117677905657441]
Integrated quantum photonic circuit is a promising platform for the realization of quantum information processing.
We report the implementation of super-compact universal quantum logic gates on silicon chips by the method of inverse design.
Our study paves the way for the realization of largescale quantum photonic chips with integrated sources, and can possess important applications in the field of quantum information processes.
arXiv Detail & Related papers (2023-09-09T23:17:17Z) - A vertical gate-defined double quantum dot in a strained germanium
double quantum well [48.7576911714538]
Gate-defined quantum dots in silicon-germanium heterostructures have become a compelling platform for quantum computation and simulation.
We demonstrate the operation of a gate-defined vertical double quantum dot in a strained germanium double quantum well.
We discuss challenges and opportunities and outline potential applications in quantum computing and quantum simulation.
arXiv Detail & Related papers (2023-05-23T13:42:36Z) - Quantum process tomography of continuous-variable gates using coherent
states [49.299443295581064]
We demonstrate the use of coherent-state quantum process tomography (csQPT) for a bosonic-mode superconducting circuit.
We show results for this method by characterizing a logical quantum gate constructed using displacement and SNAP operations on an encoded qubit.
arXiv Detail & Related papers (2023-03-02T18:08:08Z) - QUICK$^3$ -- Design of a satellite-based quantum light source for
quantum communication and extended physical theory tests in space [73.86330563258117]
Single photon source can enhance secure data rates in satellite-based quantum key distribution scenarios.
payload is being integrated into a 3U CubeSat and scheduled for launch in 2024 into low Earth orbit.
arXiv Detail & Related papers (2023-01-26T15:34:11Z) - Integrated Quantum Optical Phase Sensor [48.7576911714538]
We present a photonic integrated circuit fabricated in thin-film lithium niobate.
We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics.
We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
arXiv Detail & Related papers (2022-12-19T18:46:33Z) - Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems.
Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z) - Universal quantum multi-qubit entangling gates with auxiliary spaces [0.0]
We present an effective quantum circuit for the implementation of a controlled-NOT (CNOT) gate.
The method is extended to the construction of a general n-control-qubit Toffoli gate with (2n-1) qubit-qudit gates and (2n-2) single-qudit gates.
Based on the presented quantum circuits, the polarization CNOT and Toffoli gates with linear optics are designed by operating on the spatial-mode degree of freedom of photons.
arXiv Detail & Related papers (2021-05-22T03:30:22Z) - Heralded non-destructive quantum entangling gate with single-photon
sources [5.881327681338198]
We demonstrate a heralded controlled-NOT (CNOT) operation between two single photons for the first time.
Our results are an important step towards the development of photon-photon quantum logic gates.
arXiv Detail & Related papers (2020-10-28T06:50:23Z) - Experimental Demonstration of Efficient High-dimensional Quantum Gates
with Orbital Angular Momentum [4.685726479038803]
We experimentally demonstrate the four-dimensional X gate and its unique higher orders with the average conversion efficiency 93%.
Our work is an important step towards the goal of achieving arbitrary high-dimensional quantum circuit and paves a way for the implementation of high-dimensional quantum communication and computation.
arXiv Detail & Related papers (2020-10-11T15:20:07Z) - Generating Spatially Entangled Itinerant Photons with Waveguide Quantum
Electrodynamics [43.53795072498062]
In this work, we demonstrate the deterministic generation of such photons using superconducting transmon qubits that are directly coupled to a waveguide.
We generate two-photon N00N states and show that the state and spatial entanglement of the emitted photons are tunable via the qubit frequencies.
arXiv Detail & Related papers (2020-03-16T16:03:27Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.