156 citations · 296 across the 14 of their papers we have counts for
8 papers · 1 filter
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…
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…
A hybrid atom tweezer array of nuclear spin and optical clock qubits
Yuma Nakamura, Toshi Kusano, Rei Yokoyama +6
While data qubits with a long coherence time are essential for the storage of quantum information, ancilla qubits are pivotal in quantum error correction (QEC) for fault-tolerant q…
Manipulation of Non-classical Atomic Spin States
Tetsushi Takano, Shin-Ichi-Ro Tanaka, Ryo Namiki +1
We report successful manipulation of non-classical atomic spin states. We generate squeezed spin states by a spin quantum nondemolition measurement, and apply an off-resonant circu…
Measurement schemes for the spin quadratures on an ensemble of atoms
Ryo Namiki, Tetsushi Takano, Shin-Ichi-Ro Tanaka +1
We consider how to measure collective spin states of an atomic ensemble based on the recent multi-pass approaches for quantum interface between light and atoms. We find that a sche…
Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half
T. Takano, M. Fuyama, R. Namiki +1
To establish an applicable system for advanced quantum information processing between light and atoms, we have demonstrated the quantum non-demolition (QND) measurement with a coll…
Fast polarimetry system for the application to spin quantum non-demolition measurement
M. Takeuchi, T. Takano, S. Ichihara +4
We report the development of a fast pulse polarimeter for the application to quantum non-demolition measurement of atomic spin (Spin QND). The developed system was tunable to the a…
Paramagnetic Faraday rotation with spin-polarized ytterbium atoms
M. Takeuchi, T. Takano, S. Ichihara +4
We report observation of the paramagnetic Faraday rotation of spin-polarized ytterbium (Yb) atoms. As the atomic samples, we used an atomic beam, released atoms from a magneto-opti…