QunaSys Inc. @QunaSys_en

We're an algorithm/software development company for quantum computing, with the strong focus on material simulation. Our Website: https://t.co/NP3xNqXWMW linktr.ee/QunaSys Bunkyo-ku, Tokyo, Japan Joined August 2020

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QunaSys Inc. @QunaSys_en

a month ago

【New preprint🎉】 We have posted a new paper on the quantum state simulation with a limited number of T gates, looking ahead the early-FTQC era. arxiv.org/abs/2508.14546

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QunaSys Inc. @QunaSys_en

2 months ago

[New preprint 🎉] We have posted a preprint proposing a way to realize quantum many-body scar states, which are intriguing nonthermal states, as a stable phase of nonequilibrium steady states. arxiv.org/abs/2507.22583

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QunaSys Inc. @QunaSys_en

2 months ago

[Paper published 🎉] Our paper on estimating Clifford+T gate decomposition error has been published in Quantum. This work can lead to the efficient use of early fault-tolerant quantum computers. quantum-journal.org/papers/q-2025-…

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QunaSys Inc. @QunaSys_en

3 months ago

Fluid dynamics simulation is a promising application for quantum computing, and we are actively working on it. We've just published a blog post on the work led by our intern Ueno, demonstrating the quantum circuit implementations for fluid dynamics. tech.qunasys.com/en/posts/lbm_c…

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QunaSys Inc. @QunaSys_en

5 months ago

【Objective insights for quantum computing adoption】 QunaSys has released the preview of “QURI Bench” — a benchmarking tool to evaluate quantum hardware for enterprise R&D and DX teams. Helping you choose the right hardware & accelerate development. qunasys.com/en/news/posts/…

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Nobuyuki Yoshioka @komoinv

6 months ago

Paper out! We prove worst-case classical hardness of sampling from unitary cluster Jastrow circuit, which automatically proves hardness for well-known UCC families. Congrats Hafid-san, Iwakiri-san, Kohda-san, and Kento for important step for QSCI/SQD! arxiv.org/abs/2504.12893

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QunaSys Inc. @QunaSys_en

7 months ago

[New preprint 🎉] In collaboration with Fujitsu Limited, we investigated the capability of the Cartan-based fast-forwarding method for interacting fermion models. We obtain the inequalities for the dimension of their Hamiltonian algebras. arxiv.org/abs/2502.04620