Related papers: Quantum Experiments and Hypergraphs: Multi-Photon Sources for Quantum Interference, Quantum Computation and Quantum Entanglement

Quantum Experiments and Hypergraphs: Multi-Photon Sources for Quantum Interference, Quantum Computation and Quantum Entanglement

URL: http://arxiv.org/abs/2003.01910v2
Date: Mon, 16 Mar 2020 06:04:39 GMT
Title: Quantum Experiments and Hypergraphs: Multi-Photon Sources for Quantum Interference, Quantum Computation and Quantum Entanglement
Authors: Xuemei Gu, Lijun Chen, Mario Krenn
Abstract summary: We introduce the concept of hypergraphs to describe quantum optical experiments with probabilistic multi-photon sources. Our work paves the path for the development of multi-photon high-dimensional state generation and might inspire new applications of quantum computations using hypergraph mappings.
Score: 3.1776833268555134
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We introduce the concept of hypergraphs to describe quantum optical experiments with probabilistic multi-photon sources. Every hyperedge represents a correlated photon source, and every vertex stands for an optical output path. Such general graph description provides new insights for producing complex high-dimensional multi-photon quantum entangled states, which go beyond limitations imposed by pair creation via spontaneous parametric down-conversion. Furthermore, properties of hypergraphs can be investigated experimentally. For example, the NP-Complete problem of deciding whether a hypergraph has a perfect matchin can be answered by experimentally detecting multi-photon events in quantum experiments. By introducing complex weights in hypergraphs, we show a general many-particle quantum interference and manipulating entanglement in a pictorial way. Our work paves the path for the development of multi-photon high-dimensional state generation and might inspire new applications of quantum computations using hypergraph mappings.

Related papers

Deterministic and reconfigurable graph state generation with a single solid-state quantum emitter [0.0]
We demonstrate deterministic and reconfigurable graph state generation with optical solid-state integrated quantum emitters. We perform quantum state tomography of two successive photons, measuring Bell state fidelities up to 0.80$pm$0.04 and concurrences up to 0.69$pm$0.09. This simple optical scheme, compatible with commercially available quantum dot-based single photon sources, brings us a step closer to fault-tolerant quantum computing with spins and photons.
arXiv Detail & Related papers (2024-10-30T23:59:54Z)
Graph-theoretic insights on the constructability of complex entangled states [0.24578723416255752]
We introduce the technique of local sparsification on experiment graphs, using which we answer a crucial open question in experimental quantum optics. This provides us with more insights into quantum resource theory, the limitation of specific quantum photonic systems and initiates the use of graph-theoretic techniques for designing quantum physics experiments.
arXiv Detail & Related papers (2023-04-13T11:13:17Z)
Orbital angular momentum based intra- and inter- particle entangled states generated via a quantum dot source [0.0]
This work employs a bright QD single-photon source to generate a complete set of quantum states for information processing with OAM photons. We first study the hybrid intra-particle entanglement between the OAM and the polarization degree of freedom of a single-photon. Then, we investigate the hybrid inter-particle entanglement, by exploiting a probabilistic two qudit OAM-based entangling gate.
arXiv Detail & Related papers (2022-11-09T19:20:49Z)
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)
Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
arXiv Detail & Related papers (2022-03-28T19:37:08Z)
Dynamical photon-photon interaction mediated by a quantum emitter [1.9677315976601693]
Single photons constitute a main platform in quantum science and technology. Main challenge in quantum photonics is how to generate advanced entangled resource states and efficient light-matter interfaces. We utilize the efficient and coherent coupling of a single quantum emitter to a nanophotonic waveguide for realizing quantum nonlinear interaction between single-photon wavepackets.
arXiv Detail & Related papers (2021-12-13T17:33:30Z)
Photon-mediated Stroboscopic Quantum Simulation of a $\mathbb{Z}_{2}$ Lattice Gauge Theory [58.720142291102135]
Quantum simulation of lattice gauge theories (LGTs) aims at tackling non-perturbative particle and condensed matter physics. One of the current challenges is to go beyond 1+1 dimensions, where four-body (plaquette) interactions, not contained naturally in quantum simulating devices, appear. We show how to prepare the ground state and measure Wilson loops using state-of-the-art techniques in atomic physics.
arXiv Detail & Related papers (2021-07-27T18:10:08Z)
Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics [50.591267188664666]
Generation and control of quantum correlations in high-dimensional systems is a major challenge in the present landscape of quantum technologies. We propose a protocol that is able to attain entangled states of $d$-dimensional systems through a quantum-walk-based it transfer & accumulate mechanism. In particular, we illustrate a possible photonic implementation where the information is encoded in the orbital angular momentum and polarization degrees of freedom of single photons.
arXiv Detail & Related papers (2020-10-14T14:33:34Z)
Experimental Quantum Generative Adversarial Networks for Image Generation [93.06926114985761]
We experimentally achieve the learning and generation of real-world hand-written digit images on a superconducting quantum processor. Our work provides guidance for developing advanced quantum generative models on near-term quantum devices.
arXiv Detail & Related papers (2020-10-13T06:57:17Z)
Exploring complex graphs using three-dimensional quantum walks of correlated photons [52.77024349608834]
We introduce a new paradigm for the direct experimental realization of excitation dynamics associated with three-dimensional networks. This novel testbed for the experimental exploration of multi-particle quantum walks on complex, highly connected graphs paves the way towards exploiting the applicative potential of fermionic dynamics in integrated quantum photonics.
arXiv Detail & Related papers (2020-07-10T09:15:44Z)

This list is automatically generated from the titles and abstracts of the papers in this site.