Multi-site Integrated Optical Addressing of Trapped Ions

• URL: http://arxiv.org/abs/2308.14918v3
• Date: Thu, 28 Mar 2024 20:40:11 GMT
• Title: Multi-site Integrated Optical Addressing of Trapped Ions
• Authors: Joonhyuk Kwon, William J. Setzer, Michael Gehl, Nicholas Karl, Jay Van Der Wall, Ryan Law, Matthew G. Blain, Daniel Stick, Hayden J. McGuinness,
• Abstract summary: One of the most effective ways to advance the performance of quantum computers is to increase the number of qubits or quantum resources in the system. A major technical challenge that must be solved is scaling the delivery of optical signals to many individual ions. This work represents an important step towards the realization of scalable integrated photonics for atomic clocks and trapped-ion quantum information systems.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: One of the most effective ways to advance the performance of quantum computers and quantum sensors is to increase the number of qubits or quantum resources in the system. A major technical challenge that must be solved to realize this goal for trapped-ion systems is scaling the delivery of optical signals to many individual ions. In this paper we demonstrate an approach employing waveguides and multi-mode interferometer splitters to optically address multiple $^{171}\textrm{Yb}^+$ ions in a surface trap by delivering all wavelengths required for full qubit control. Measurements of hyperfine spectra and Rabi flopping were performed on the E2 clock transition, using integrated waveguides for delivering the light needed for Doppler cooling, state preparation, coherent operations, and detection. We describe the use of splitters to address multiple ions using a single optical input per wavelength and use them to demonstrate simultaneous Rabi flopping on two different transitions occurring at distinct trap sites. This work represents an important step towards the realization of scalable integrated photonics for atomic clocks and trapped-ion quantum information systems.

Related papers

• 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)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• A guided light system for agile individual addressing of Ba$^+$ qubits with $10^{-4}$ level intensity crosstalk [0.0]
  We present a novel, guided-light individual addressing system for hyperfine Ba$+$ qubits. The system takes advantage of laser-written waveguide technology, enabled by the atomic structure of Ba$+$. We demonstrate a nearest neighbour relative intensity crosstalk on the order of 10$-4$, without any active aberration compensation.
  arXiv  Detail & Related papers  (2023-02-28T16:20:18Z)
• Quantum-limited millimeter wave to optical transduction [50.663540427505616]
  Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
  arXiv  Detail & Related papers  (2022-07-20T18:04:26Z)
• 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)
• Routing Single Photons from a Trapped Ion Using a Photonic Integrated Circuit [0.0]
  Future quantum networks based on trapped ions will require a scalable way to route photons between different nodes. We demonstrate the routing of single photons from a trapped ion using a photonic integrated circuit.
  arXiv  Detail & Related papers  (2022-03-15T16:42:39Z)
• 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)
• Dispersive optical systems for scalable Raman driving of hyperfine qubits [45.82374977939355]
  We introduce a new method for generating amplitude modulation by phase modulating a laser. This approach is passively stable, offers high efficiency, and is compatible with high-power laser sources. We benchmark this new approach by globally driving an array of $sim 300$ neutral $87$Rb atomic qubits trapped in optical tweezers.
  arXiv  Detail & Related papers  (2021-10-27T18:00:00Z)
• Optical Entanglement of Distinguishable Quantum Emitters [0.0]
  We propose and demonstrate an efficient method for entangling emitters with optical transitions separated by many linewidths. In our approach, electro-optic modulators enable a single photon to herald a parity measurement on a pair of spin qubits. Working with distinguishable emitters allows for individual qubit addressing and readout, enabling parallel control and entanglement of both co-located and spatially separated emitters.
  arXiv  Detail & Related papers  (2021-08-24T19:37:08Z)
• Integrated optical multi-ion quantum logic [4.771545115836015]
  Planar-fabricated optics integrated within ion trap devices can make such systems simultaneously more robust and parallelizable. We use scalable optics co-fabricated with a surface-electrode ion trap to achieve high-fidelity multi-ion quantum logic gates. Similar devices may also find applications in neutral atom and ion-based quantum-sensing and timekeeping.
  arXiv  Detail & Related papers  (2020-02-06T13:52:01Z)
• Integrated multi-wavelength control of an ion qubit [0.0]
  Monolithic integration of control technologies for atomic systems is a promising route to the development of quantum computers and portable quantum sensors. Here we demonstrate a surface-electrode ion-trap chip using integrated waveguides and grating couplers. Laser light from violet to infrared is coupled onto the chip via an optical-fiber array, creating an inherently stable optical path.
  arXiv  Detail & Related papers  (2020-01-14T21:23:21Z)

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.