A5086120785- Cold Atom Physics and Bose-Einstein Condensates
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Quantum Computing Algorithms and Architecture
- Atomic and Subatomic Physics Research
- Quantum and electron transport phenomena
- Quantum Mechanics and Applications
- Advanced Frequency and Time Standards
- Terahertz technology and applications
- Diatoms and Algae Research
- Electronic and Structural Properties of Oxides
- Scientific Research and Discoveries
- Advanced Materials Characterization Techniques
- Mechanical and Optical Resonators
- Strong Light-Matter Interactions
- Electrostatics and Colloid Interactions
Atom Computing (United States)
2022-2023
Pennsylvania State University
2016-2022
National Tsing Hua University
2017
We introduce an optical tweezer platform for assembling and individually manipulating a two-dimensional register of nuclear spin qubits. Each qubit is encoded in the ground $^{1}S_{0}$ manifold $^{87}$Sr manipulated by site-selective addressing beams. observe that relaxation negligible after 5 seconds, indicating $T_1\gg5$ s. Furthermore, utilizing simultaneous manipulation subsets qubits, we demonstrate significant phase coherence over entire register, estimating $T_2^\star =...
Although the quality of individual quantum bits (qubits) and gates has been steadily improving, number qubits in a single system increased quite slowly. Here, we demonstrate arbitrary single-qubit based on targeted phase shifts, an approach that can be applied to atom, ion, or other atom-like systems. These are highly insensitive addressing beam imperfections have little cross-talk, allowing for dramatic scaling up qubit number. We performed series 48 individually sites 40% full 5 by...
Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling neutral-atom-based quantum computers simulators. In this work, we demonstrate new paradigm assembly atomic arrays, based on synergistic combination optical tweezers cavity-enhanced lattices, the incremental filling target array from repetitively filled reservoir. protocol, provide microscopic rearrangement atoms, while lattices enable creation numbers deep potentials that...
Measurement-based quantum error correction relies on the ability to determine state of a subset qubits (ancillae) within processor without revealing or disturbing remaining qubits. Among neutral-atom based platforms, scalable, high-fidelity approach mid-circuit measurement that retains ancilla in suitable for future operations has not yet been demonstrated. In this work, we perform imaging using narrow-linewidth transition an array tweezer-confined $^{171}$Yb atoms demonstrate nondestructive...
Single photons of subnatural linewidth and high spectral brightness are necessary for efficient light-matter interaction at the single-photon level, which lies heart many quantum photonic technologies. Here we demonstrate a bright source single with linewidth, controllable waveforms,...
We propose a way to measure the qubit state of an arbitrary subensemble atoms in array without significantly disturbing quantum information unmeasured atoms. The idea is first site-selectively transfer out basis so that one two states at time put into auxiliary state. Electromagnetically induced transparency (EIT) light will then protect most while detection scattered from state, which made immune EIT protection by angular momentum selection rules and carefully chosen polarization. be...
Arrays of optically trapped neutral atoms are a promising architecture for the realization quantum computers. In order to run increasingly complex algorithms, it is advantageous demonstrate high-fidelity and flexible gates between long-lived highly coherent qubit states. this work, we universal gate-set with individually controlled parallel application single-qubit two-qubit operating on ground-state nuclear spin in arrays tweezer-trapped $^{171}$Yb atoms. We utilize long lifetime, control,...
Transitioning from quantum computation on physical qubits to encoded, logical can improve the error rate of operations, and will be essential for realizing valuable computational advantages. Using a neutral atom processor with 256 qubits, each an individual Ytterbium atom, we demonstrate entanglement 24 using distance-two [[4,2,2]] code, simultaneously detecting errors correcting lost qubits. We also implement Bernstein-Vazirani algorithm up 28 encoded in [[4,1,2]] showing...
Using a monolithic doubly resonant parametric down-converter, we demonstrate an ultrabright source of subnatural linewidth, temporally long single photons at the rubidium D1 line. The have spectral brightness one order-of-magnitude higher than previously reported and waveform controllable by electro-optic modulation. Applications to several areas quantum communication, memories, key distribution are possible.
We will report on our high-fidelity state preparation and measurement (SPAM) of neutral atom qubits in a 3D architecture. Using state-dependent lattices, we perform sorting, efficient ( > 97%) vibrational cooling lossless detection.
We propose a way to measure the qubit state of an arbitrary sub-ensemble atoms in array without significantly disturbing quantum information unmeasured atoms. The idea is first site-selectively transfer out basis so that one two states at time put into auxiliary state. Electromagnetically induced transparency (EIT) light will then protect most while detection scattered from state, which made immune EIT protection by angular momentum selection rules and carefully chosen polarization. be...
The 53rd Annual Meeting of the APS Division Atomic, Molecular and Optical Physics will take place from May 30 – June 3, 2022 in Orlando, Fl, USA. <a href="https://morressier.zoom.us/j/89880865272?pwd=SWxTRGhra1ZOSDBrSkhVZDBzVDR6UT09/">Virtual Presenter Help Desk</a>