Non-Markovian dynamics of BIC generation via single-photon scattering

• URL: http://arxiv.org/abs/2501.04691v1
• Date: Wed, 08 Jan 2025 18:56:22 GMT
• Title: Non-Markovian dynamics of BIC generation via single-photon scattering
• Authors: Giuseppe Magnifico, Maria Maffei, Domenico Pomarico, Debmalya Das, Paolo Facchi, Saverio Pascazio, Francesco V. Pepe,
• Abstract summary: continuum of bound states in excitation (BICs) in two- or multi-qubit systems lies at the heart of entanglement generation. We prove that scattering of a parity-invariant single photon on a qubit pair, combined with a properly engineered time variation of the qubit detuning, is not only feasible, but also more effective than strategies based on the relaxation of the excited states of the qubits.
• Score: 0.0
• License:
• Abstract: The excitation of bound states in the continuum (BICs) in two- or multi-qubit systems lies at the heart of entanglement generation and harnessing in waveguide quantum electrodynamics platforms. However, the generation of qubit pair BICs through single-photon scattering is hindered by the fact that these states are effectively decoupled from propagating photons. We prove that scattering of a parity-invariant single photon on a qubit pair, combined with a properly engineered time variation of the qubit detuning, is not only feasible, but also more effective than strategies based on the relaxation of the excited states of the qubits. The use of tensor network methods to simulate the proposed scheme enables to include photon delays in collision models, thus opening the possibility to follow the time evolution of the full quantum system, including qubits and field, and to efficiently implement and characterize the dynamics in non-ideal cases, which turn out to be optimal for the BIC generation strategy.

Related papers

• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Dynamical Blockade Optimizing via Particle Swarm Optimization Algorithm [3.1802137131366472]
  We propose to optimize the parameters of pulsed driving field to achieve dynamic blockade in a single bosonic mode with weak nonlinearity. Our work highlights the effectiveness of PSO algorithm in optimizing dynamical blockade, but also opens a way to optimize the parameters for other quantum effects, such as quantum entanglement and quantum squeezing.
  arXiv  Detail & Related papers  (2024-04-29T09:11:15Z)
• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Generation and characterization of polarization-entangled states using quantum dot single-photon sources [0.0]
  Single-photon sources based on semiconductor quantum dots find several applications in quantum information processing. We implement this approach via a simple and compact design that generates entangled photon pairs in the polarization degree of freedom. Our source shows long-term stability and high quality of the generated entangled states, thus constituting a reliable building block for optical quantum technologies.
  arXiv  Detail & Related papers  (2023-08-04T16:07:12Z)
• Jaynes-Cummings interaction between low energy free-electrons and cavity photons [0.571097144710995]
  We propose a new approach to realize the Jaynes-Cummings Hamiltonian using low energy free-electrons coupled to dielectric microcavities. Our approach utilizes quantum recoil, which causes a large detuning that inhibits the emission of multiple consecutive photons. We show that this approach can be used for generation of single photons with unity efficiency and high fidelity.
  arXiv  Detail & Related papers  (2023-02-03T07:06:51Z)
• Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
  Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states. Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
  arXiv  Detail & Related papers  (2022-12-22T23:32:21Z)
• Topologically Protecting Squeezed Light on a Photonic Chip [58.71663911863411]
  Integrated photonics offers an elegant way to increase the nonlinearity by confining light strictly inside the waveguide. We experimentally demonstrate the topologically protected nonlinear process of spontaneous four-wave mixing enabling the generation of squeezed light on a silica chip.
  arXiv  Detail & Related papers  (2021-06-14T13:39:46Z)
• Single photon emission from individual nanophotonic-integrated colloidal quantum dots [45.82374977939355]
  Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms. We report on integrating individual colloidal core-shell quantum dots into a nanophotonic network that allows for excitation and efficient collection of single-photons via separate waveguide channels.
  arXiv  Detail & Related papers  (2021-04-23T22:14:17Z)
• Efficient simulation of ultrafast quantum nonlinear optics with matrix product states [0.0]
  We develop an algorithm to unravel the MPS quantum state into constituent temporal supermodes. We observe the development of non-classical Wigner-function negativity in the solitonic mode and quantum corrections to the semiclassical dynamics of the pulse.
  arXiv  Detail & Related papers  (2021-02-11T09:15:24Z)
• Inverse-designed photon extractors for optically addressable defect qubits [48.7576911714538]
  Inverse-design optimization of photonic devices enables unprecedented flexibility in tailoring critical parameters of a spin-photon interface. Inverse-designed devices will enable realization of scalable arrays of single-photon emitters, rapid characterization of new quantum emitters, sensing and efficient heralded entanglement schemes.
  arXiv  Detail & Related papers  (2020-07-24T04:30:14Z)
• Quantum photonics with active feedback loops [0.0]
  We develop a unified theoretical framework for the efficient description of multiphoton states generated and propagating in loop-based optical networks. We provide exact expressions for fidelities with target states, success probabilities of heralding-type measurements, and correlations between optical modes.
  arXiv  Detail & Related papers  (2020-02-19T13:07:46Z)

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.