Quantum Computing research

Quantum computing foundations, algorithms and programming, error correction and hardware, post-quantum security, and where the industry stands.

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523 entries

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  • Preprint
  • Not peer reviewed
  • From Tata Consultancy Services / IBM

Researchers report quantum method for larger-scale molecular dynamics simulations

Original title: Towards large-scale ab initio Molecular Dynamics Simulation with Efficient Sampling-based Quantum Computing Algorithms

A preprint describes SqDRIFT-AIMD, a quantum-computing approach said to outperform CCSD for 40-qubit molecular dynamics simulations.

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  • Preprint
  • Not peer reviewed
  • From Origin Quantum Computing Technology

Preprint proposes depth-reduced method for simulating open quantum system dynamics

Original title: Depth-reduced quantum simulation of Lindbladian dynamics via adaptive variational quantum trajectory compression

A preprint describes a variational technique to compress quantum trajectory circuits for simulating dissipative quantum systems on near-term hardware.

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  • Preprint
  • Not peer reviewed
  • From Fujitsu

Preprint reports early fault-tolerant path to chemically accurate quantum chemistry

Original title: Enabling Chemically Accurate Quantum Phase Estimation in the Early Fault-Tolerant Regime via Unitary Weight Concentration

A preprint describes a Hamiltonian optimisation method that could bring chemically accurate molecular simulation within reach of early fault-tolerant quantum computers.

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  • Preprint
  • Not peer reviewed

Preprint proposes geometric logical T gate with higher-order error suppression

Original title: Suppression of Universal Errors in DFS-Encoded Superconducting Geometric Logical \emph{T} Gate

A preprint describes a superconducting logical T gate that the authors say resists noise more robustly than existing approaches.

Cheng-Yun Ding et al. · Added · Released May 2026

  • Preprint
  • Not peer reviewed
  • From Quantinuum

Researchers report RL agent learns near-optimal Clifford circuit synthesis

Original title: Equivariant Reinforcement Learning for Clifford Quantum Circuit Synthesis

A preprint describes a reinforcement learning agent that synthesises Clifford quantum circuits and scales to far larger qubit counts than it was trained on.

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