'Sawfish' Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications

• URL: http://arxiv.org/abs/2210.04702v1
• Date: Mon, 10 Oct 2022 14:00:39 GMT
• Title: 'Sawfish' Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications
• Authors: Julian M. Bopp, Matthias Plock, Tim Turan, Gregor Pieplow, Sven Burger, Tim Schr\"oder
• Abstract summary: We develop a waveguide-integrated 'Sawfish' photonic crystal cavity and use finite element simulations to demonstrate that our system transfers, with 97.4% efficiency, the zero-phonon line emission of a negatively-charged tin vacancy center in diamond adiabatically to a single-mode fiber. Our corrugation-based design proves robust under state-of-the-art nanofabrication parameters, maintaining an emitter-to-fiber coupling efficiency of 88.6%.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Photon loss is one of the key challenges to overcome in complex photonic quantum applications. Photon collection efficiencies directly impact the amount of resources required for measurement-based quantum computation and communication networks. Promising resources include solid-state quantum light sources, however, efficiently coupling light from a single quantum emitter to a guided mode remains demanding. In this work, we eliminate photon losses by maximizing coupling efficiencies in an emitter-to-fiber interface. We develop a waveguide-integrated 'Sawfish' photonic crystal cavity and use finite element simulations to demonstrate that our system transfers, with 97.4% efficiency, the zero-phonon line emission of a negatively-charged tin vacancy center in diamond adiabatically to a single-mode fiber. A surrogate model trained by machine learning provides quantitative estimates of sensitivities to fabrication tolerances. Our corrugation-based design proves robust under state-of-the-art nanofabrication parameters, maintaining an emitter-to-fiber coupling efficiency of 88.6%. To demonstrate its potential in reducing resource requirements, we apply the Sawfish cavity to a recent one-way quantum repeater protocol.

Related papers

• Tailoring fusion-based photonic quantum computing schemes to quantum emitters [0.0]
  Fusion-based quantum computation is a promising quantum computing model where small-sized photonic resource states are simultaneously entangled and measured by fusion gates. Here, we propose fusion-based architectures tailored to the capabilities and noise models in quantum emitters. We show that high tolerance to dominant physical error mechanisms can be achieved, with fault-tolerance thresholds of 8% for photon loss, 4% for photon distinguishability between emitters, and spin noise thresholds well above memory-induced errors.
  arXiv  Detail & Related papers  (2024-10-09T11:31:49Z)
• A Hybrid Approach to Mitigate Errors in Linear Photonic Bell-State Measurement for Quantum Interconnects [0.0]
  We introduce a novel hybrid detection scheme for Bell-state measurement. We derive explicit fidelities for quantum teleportation and entanglement swapping processes. This work provides a new tool for linear optics schemes, with applications to quantum state engineering and quantum interconnects.
  arXiv  Detail & Related papers  (2024-06-14T18:00:00Z)
• Purcell enhancement of single-photon emitters in silicon [68.8204255655161]
  Individual spins that are coupled to telecommunication photons offer unique promise for distributed quantum information processing. We implement such an interface by integrating erbium dopants into a nanophotonic silicon resonator. We observe optical Rabi oscillations and single-photon emission with a 78-fold Purcell enhancement.
  arXiv  Detail & Related papers  (2023-01-18T19:38:38Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• Efficient Source of Shaped Single Photons Based on an Integrated Diamond Nanophotonic System [0.0]
  An efficient source of shaped single photons can be directly integrated with optical fiber networks and quantum memories. We demonstrate a deterministic source of arbitrarily temporally shaped single-photon pulses with high efficiency. This system could be used as a resource for robust transmission and processing of quantum information.
  arXiv  Detail & Related papers  (2022-01-08T02:12:24Z)
• On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide [48.7576911714538]
  Laser-written diamond photonics offers three-dimensional fabrication capabilities and large mode-field diameters matched to fiber optic technology. To realize large cooperativities, we combine excitation of single shallow-implanted silicon vacancy centers via large numerical aperture optics. We demonstrate single-emitter extinction measurements with a cooperativity of 0.153 and a beta factor of 13% yielding 15.3% as lower bound for the quantum efficiency of a single emitter.
  arXiv  Detail & Related papers  (2021-11-02T16:01:15Z)
• 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)
• 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)
• Single Photon Sources with Near Unity Collection Efficiencies by Deterministic Placement of Quantum Dots in Nanoantennas [3.6654842121350257]
  We present a method for directly locating single free-standing quantum emitters with high spatial accuracy. We also employ non-blinking, high quantum yield quantum dots (QDs) for on-demand single-photon emission. Taken together this approach results in a record-high collection efficiency of 85% of the single photons into a low NA of 0.5.
  arXiv  Detail & Related papers  (2020-05-23T15:05:23Z)
• Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
  Integrated photonics is a robust platform for quantum information processing. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
  arXiv  Detail & Related papers  (2020-05-19T16:46:44Z)
• Scalable integrated single-photon source [0.0]
  Photonic qubits are key enablers for quantum-information processing deployable across a distributed quantum network. A main challenge is to overcome noise and decoherence processes in order to reach the benchmarks on generation efficiency and photon indistinguishability. We report on the realization of a deterministic single-photon source featuring near-unity indistinguishability using a quantum dot in an 'on-chip' The device produces long strings of $>100$ single photons without any observable decrease in the mutual indistinguishability between photons.
  arXiv  Detail & Related papers  (2020-03-19T17:32:04Z)

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.