Rolled-up Epsilon-near-zero Waveguide reservoir for long-range qubit entanglement

• URL: http://arxiv.org/abs/2107.13230v1
• Date: Wed, 28 Jul 2021 09:01:52 GMT
• Title: Rolled-up Epsilon-near-zero Waveguide reservoir for long-range qubit entanglement
• Authors: Ibrahim Issah, Mohsin Habib and Humeyra Caglayan
• Abstract summary: This work presents the concurrence measure of entanglement between two qubits coupled to a rolled-up epsilon-near-zero (ENZ) waveguide reservoir. Our numerical calculations demonstrate that the proposed rolled-up ENZ waveguide reservoir can preserve the entanglement of two qubits at the cutoff wavelength of the reservoir via enhanced energy transfer. This proposed rolled-up ENZ waveguide can serve as a unique reservoir for various quantum technologies such as quantum communication, quantum information processing, and single-photon generation.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Preservation of the entangled state of a quantum system is relevant in quantum applications. However, the preservation of entangled states is constrained due to the energy dissipation of the quantum system arising from the environment. As a result, the design of the environment seen by quantum bits is relevant due to its relation to the final state of the quantum system. This work presents the concurrence measure of entanglement between two qubits coupled to a rolled-up epsilon-near-zero (ENZ) waveguide reservoir consisting of an alternating layer of metal and dielectric. Our numerical calculations demonstrate that the proposed rolled-up ENZ waveguide reservoir can preserve the entanglement of two qubits at the cutoff wavelength of the reservoir via enhanced energy transfer. This proposed rolled-up ENZ waveguide can serve as a unique reservoir for various quantum technologies such as quantum communication, quantum information processing, and single-photon generation. As a proof of concept, we also demonstrate that this novel structure can be fabricated using cost-effective self-rolling techniques.

Related papers

• Tunable quantum router with giant atoms, implementing quantum gates, teleportation, non-reciprocity, and circulators [0.14660435286994572]
  Giant-atom systems offer a novel paradigm for exploring innovative quantum optics phenomena and applications. We investigate a giant-atom configuration embedded in a dual-rail waveguide, whose scattering behavior is analytically derived based on a four-port model. We propose quantum applications such as quantum storage, path-encoded quantum gates, quantum teleportation, and quantum circulators.
  arXiv  Detail & Related papers  (2024-11-28T18:29:22Z)
• Beyond-adiabatic Quantum Admittance of a Semiconductor Quantum Dot at High Frequencies: Rethinking Reflectometry as Polaron Dynamics [0.0]
  We develop a self-consistent quantum master equation formalism to obtain the admittance of a quantum dot tunnel-coupled to a charge reservoir. We describe two new photon-mediated regimes: Floquet broadening, determined by the dressing of the QD states, and broadening determined by photon loss in the system.
  arXiv  Detail & Related papers  (2023-07-31T14:46:43Z)
• Stable Quantum-Correlated Many Body States through Engineered Dissipation [0.6491408057780899]
  We prepare low-energy states of the transverse-field Ising model using up to 49 superconducting qubits. In one dimension, we observed long-range quantum correlations and a ground-state fidelity of 0.86 for 18 qubits at the critical point. Our results establish engineered dissipation as a scalable alternative to unitary evolution for preparing entangled many-body states on noisy quantum processors.
  arXiv  Detail & Related papers  (2023-04-26T23:51:27Z)
• Variational waveguide QED simulators [58.720142291102135]
  Waveguide QED simulators are made by quantum emitters interacting with one-dimensional photonic band-gap materials. Here, we demonstrate how these interactions can be a resource to develop more efficient variational quantum algorithms.
  arXiv  Detail & Related papers  (2023-02-03T18:55:08Z)
• Effect of induced transition on the quantum entanglement and coherence in two-coupled double quantum dots system [0.0]
  Double quantum dots (DQDs) appear as a versatile platform for technological breakthroughs in quantum computation and nanotechnology. This work inspects the thermal entanglement and quantum coherence in two-coupled DODs, where the system is exposed to an external stimulus that induces an electronic transition within each subsystem.
  arXiv  Detail & Related papers  (2022-11-08T22:07:26Z)
• From Goldilocks to Twin Peaks: multiple optimal regimes for quantum transport in disordered networks [68.8204255655161]
  Open quantum systems theory has been successfully applied to predict the existence of environmental noise-assisted quantum transport. This paper shows that a consistent subset of physically modelled transport networks can have at least two ENAQT peaks in their steady state transport efficiency.
  arXiv  Detail & Related papers  (2022-10-21T10:57:16Z)
• Efficient criteria of quantumness for a large system of qubits [58.720142291102135]
  We discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution.
  arXiv  Detail & Related papers  (2021-08-30T23:50:05Z)
• Coherent control of a symmetry-engineered multi-qubit dark state in waveguide quantum electrodynamics [0.0]
  Quantum electrodynamics studies qubits coupled to a mode continuum, exposing them to a loss channel and causing quantum information to be lost before coherent operations can be performed. Here we restore coherence by realizing a dark state that exploits symmetry properties and interactions between four qubits. Our experiment paves the way for implementations of quantum many-body physics in waveguides and the realization of quantum information protocols using decoherence-free subspaces.
  arXiv  Detail & Related papers  (2021-06-10T10:06:23Z)
• Waveguide quantum electrodynamics: collective radiance and photon-photon correlations [151.77380156599398]
  Quantum electrodynamics deals with the interaction of photons propagating in a waveguide with localized quantum emitters. We focus on guided photons and ordered arrays, leading to super- and sub-radiant states, bound photon states and quantum correlations with promising quantum information applications.
  arXiv  Detail & Related papers  (2021-03-11T17:49:52Z)
• Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime [125.99533416395765]
  We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction. The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry. The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
  arXiv  Detail & Related papers  (2020-07-04T11:02:20Z)
• Quantum electrodynamics in a topological waveguide [47.187609203210705]
  In this work we investigate the properties of superconducting qubits coupled to a metamaterial waveguide based on a photonic analog of the Su-Schrieffer-Heeger model. We explore topologically-induced properties of qubits coupled to such a waveguide, ranging from the formation of directional qubit-photon bound states to topology-dependent cooperative radiation effects.
  arXiv  Detail & Related papers  (2020-05-08T00:22:17Z)
• Engineering continuous and discrete variable quantum vortex states by nonlocal photon subtraction in a reconfigurable photonic chip [0.0]
  We study the production of entangled two- and N-mode quantum states of light in optical waveguides. We propose a quantum photonic circuit that produces a reconfigurable superposition of photon subtraction on two single-mode squeezed states.
  arXiv  Detail & Related papers  (2020-04-11T11:11:16Z)

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.