Erbium emitters in commercially fabricated nanophotonic silicon waveguides

• URL: http://arxiv.org/abs/2307.14017v1
• Date: Wed, 26 Jul 2023 07:58:05 GMT
• Title: Erbium emitters in commercially fabricated nanophotonic silicon waveguides
• Authors: Stephan Rinner, Florian Burger, Andreas Gritsch, Jonas Schmitt, Andreas Reiserer
• Abstract summary: We show that erbium dopants can be reliably integrated into commercially fabricated low-loss waveguides. Our findings are an important step towards long-lived quantum memories that can be fabricated on a wafer-scale.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum memories integrated into nanophotonic silicon devices are a promising platform for large quantum networks and scalable photonic quantum computers. In this context, erbium dopants are particularly attractive, as they combine optical transitions in the telecommunications frequency band with the potential for second-long coherence time. Here we show that these emitters can be reliably integrated into commercially fabricated low-loss waveguides. We investigate several integration procedures and obtain ensembles of many emitters with an inhomogeneous broadening of < 2 GHz and a homogeneous linewidth of < 30 kHz. We further observe the splitting of the electronic spin states in a magnetic field up to 9 T that freezes paramagnetic impurities. Our findings are an important step towards long-lived quantum memories that can be fabricated on a wafer-scale using CMOS technology.

Related papers

• Scalable Feedback Stabilization of Quantum Light Sources on a CMOS Chip [2.091163184377087]
  Silicon photonics is a leading platform for realizing the vast numbers of physical qubits needed for useful quantum information processing. A challenge to the practical operation and scale-up of silicon quantum-photonic integrated circuits is the need to control their extreme sensitivity to process and temperature variations. Here, we demonstrate the first electronic-photonic quantum system-on-chip (EPQSoC) consisting of quantum-correlated photon-pair sources stabilized via on-chip feedback control circuits.
  arXiv  Detail & Related papers  (2024-11-08T19:10:12Z)
• Efficient Photonic Integration of Diamond Color Centers and Thin-Film Lithium Niobate [0.0]
  negatively charged group-IV color centers in diamond are promising candidates for quantum memories. Thin-film lithium niobate (TFLN) offers a number of useful photonic nonlinearities. We present highly efficient integration of diamond nanobeams containing negatively charged silicon-vacancy (SiV) centers with TFLN waveguides.
  arXiv  Detail & Related papers  (2023-06-27T05:04:32Z)
• Resonant two-laser spin-state spectroscopy of a negatively charged quantum dot-microcavity system with a cold permanent magnet [0.0]
  We show a compact cryogenically compatible SmCo magnet design that delivers 475 mT in-plane Voigt geometry magnetic field at 5 K. This quantum dot is embedded in a birefringent high-finesse optical micro-cavity which enables efficient collection of single photons.
  arXiv  Detail & Related papers  (2023-03-05T20:10:49Z)
• 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)
• High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time [52.77024349608834]
  Frequency conversion between microwave and optical photons is a key enabling technology to create links between superconducting quantum processors. We propose a microwave-optical platform based on long-coherence-time superconducting radio-frequency (SRF) cavities. We show that the fidelity of heralded entanglement generation between two remote quantum systems is enhanced by the low microwave losses.
  arXiv  Detail & Related papers  (2022-06-30T17:57:37Z)
• Strong coupling between a photon and a hole spin in silicon [0.0]
  Coupling spins strongly to the photonic modes of superconducting microwave resonators would enable fast non-demolition readout and long-range, on-chip connectivity. We demonstrate strong coupling between a microwave photon in a superconducting resonator and a hole spin in a silicon-based double quantum dot issued from a foundry-compatible MOS fabrication process.
  arXiv  Detail & Related papers  (2022-06-28T15:26:35Z)
• 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)
• Slowing down light in a qubit metamaterial [98.00295925462214]
  superconducting circuits in the microwave domain still lack such devices. We demonstrate slowing down electromagnetic waves in a superconducting metamaterial composed of eight qubits coupled to a common waveguide. Our findings demonstrate high flexibility of superconducting circuits to realize custom band structures.
  arXiv  Detail & Related papers  (2022-02-14T20:55:10Z)
• Spectral multiplexing of telecom emitters with stable transition frequency [68.8204255655161]
  coherent emitters can be entangled over large distances using photonic channels. We observe around 100 individual erbium emitters using a Fabry-Perot resonator with an embedded 19 micrometer thin crystalline membrane. Our results constitute an important step towards frequency-multiplexed quantum-network nodes operating directly at a telecommunication wavelength.
  arXiv  Detail & Related papers  (2021-10-18T15:39:07Z)
• Near-Field Terahertz Nanoscopy of Coplanar Microwave Resonators [61.035185179008224]
  Superconducting quantum circuits are one of the leading quantum computing platforms. To advance superconducting quantum computing to a point of practical importance, it is critical to identify and address material imperfections that lead to decoherence. Here, we use terahertz Scanning Near-field Optical Microscopy to probe the local dielectric properties and carrier concentrations of wet-etched aluminum resonators on silicon.
  arXiv  Detail & Related papers  (2021-06-24T11:06:34Z)
• Hybrid microwave-optical scanning probe for addressing solid-state spins in nanophotonic cavities [0.0]
  In this work, we demonstrate a fiber-based scanning probe that simultaneously couples light into a planar photonic circuit. The optical portion 46% achieves one-way coupling efficiency, while the microwave portion supplies an AC magnetic field with strength up to 9 Gauss. The entire probe can be scanned across a large number of devices inside a $3$He cryostat without free-space optical access.
  arXiv  Detail & Related papers  (2020-12-11T01:59:53Z)

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.