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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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  • Journal article
  • Review status unknown
  • From TISI

Researchers report qubit-efficient quantum encoding for large power portfolio optimisation

Original title: Qubit-Efficient Variational Quantum Optimization via Pauli Correlation Encoding: Application to Large-Scale Power Demand Portfolio Optimization

A study reports that Pauli correlation encoding can tackle very large power-demand portfolio problems using far fewer qubits than variables.

Added

  • Preprint
  • Not peer reviewed

Researchers report fast mid-circuit atom replacement for neutral atom qubits

Original title: Fast, continuous and coherent atom replacement in a neutral atom qubit array

A preprint reports a technique to swap in fresh atoms mid-circuit nearly two orders of magnitude faster than before, without disturbing existing qubits.

Yiyi Li et al. · Added · Released Jun 2025

  • Preprint
  • Not peer reviewed

Preprint tests error-detected QAOA for Max-Cut using a small quantum code

Original title: Toward Fault-Tolerant Variational Optimization: QAOA under [[4,2,2]] Error Detection

Researchers report that encoding QAOA with the [[4,2,2]] error-detection code and post-selecting on stabilizer checks boosts the chance of sampling optimal Max-Cut solutions.

Matteo Robert Child et al. · Added

  • Preprint
  • Not peer reviewed
  • From IQM Quantum Computers

Preprint reports planar qLDPC codes using only nearest-neighbour gates

Original title: Nearest-neighbour gates are all you need: High-rate quantum low-density parity-check codes on a planar grid

A preprint describes quantum error-correcting codes that beat surface codes while using only local, nearest-neighbour connections.

Added

  • Preprint
  • Not peer reviewed

Preprint details quantum-walker qRAM design cutting active hardware needs

Original title: Technical analysis of the Resource-efficient Quantum Walkers Quantum Random Access Memory

A preprint gives a full technical breakdown of a quantum-walker qRAM that the authors say needs far fewer active components than earlier designs.

Giuseppe De Riso et al. · Added

  • Preprint
  • Not peer reviewed

Researchers report full logical gate set for high-rate quantum codes without extra qubits

Original title: Construction of the full logical Clifford group for high-rate quantum Reed-Muller codes using only transversal and fold-transversal gates

A preprint describes building every logical Clifford gate for a family of quantum Reed-Muller codes using only transversal and fold-transversal operations.

Theerapat Tansuwannont et al. · Added