6 papers
Minimally Destructive Fast Imaging of Single Atoms in an Optical Tweezer Array with Coherent Excitation
Rei Yokoyama, Takumi Kashimoto, Kosuke Shibata +8
Ultracold neutral atoms in an optical lattice and an optical tweezer array offer highly-controllable quantum many-body systems, utilized for various quantum science and technology…
Orders-of-magnitude improvement in precision spectroscopy of an inner-shell orbital clock transition in neutral ytterbium
Taiki Ishiyama, Koki Ono, Hokuto Kawase +6
An inner-shell orbital clock transition in neutral ytterbium atoms has attracted much attention as a new optical frequency standard a…
Spin-Cat Qubit with Biased Noise in an Optical Tweezer Array
Toshi Kusano, Kosuke Shibata, Chih-Han Yeh +8
Bias-tailored quantum error correcting codes (QECCs) offer a higher error threshold than standard QECCs and have the potential to achieve lower logical errors with less space overh…
Excluding Hypothetical Light Boson Interpretation of Yb King Plot Nonlinearity with the Isotope Shift Measurement
Taiki Ishiyama, Koki Ono, Reiji Asano +6
We present precision spectroscopy and isotope shift measurement of the clock transition in neutral ytterbium () atoms. By revealing a…
Plane-selective manipulations of nuclear spin qubits in a three-dimensional optical tweezer array
Toshi Kusano, Yuma Nakamura, Rei Yokoyama +5
One of the central challenges for a practical fault-tolerant quantum computer is scalability. A three-dimensional structure of optical tweezer arrays offers the potential for scali…
Development of a high-power ultraviolet laser system and observation of fast coherent Rydberg excitation of ytterbium
Yuma Nakamura, Naoya Ozawa, Toshi Kusano +5
We present the development of a high-power ultraviolet laser system operating at a wavelength of 325 nm for Rydberg excitation from the state of ytterbium. Utili…