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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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  • Preprint
  • Not peer reviewed

Preprint reports VQE approach to Z2 lattice gauge theory avoids barren plateaus

Original title: Barren-plateau free variational quantum simulation of Z2 lattice gauge theories

A preprint describes a variational quantum eigensolver for a Z2 lattice gauge theory that the authors say sidesteps barren plateaus and captures string breaking.

Fariha Azad et al. · Added

  • Preprint
  • Not peer reviewed

Researchers entangle remote qubits via a shared squeezed microwave reservoir

Original title: Entangling remote qubits through a two-mode squeezed reservoir

A preprint reports entangling two separated superconducting qubits autonomously by driving them with a correlated microwave field, without active control.

A. Andrés-Juanes et al. · Added · Released Oct 2025

  • Preprint
  • Not peer reviewed

Preprint reports first obfuscation scheme covering arbitrary quantum circuits

Original title: Obfuscation of Arbitrary Quantum Circuits (via Subspace-Preserving Pseudorandom Unitary)

A preprint describes a method to obfuscate any quantum circuit, including non-unitary operations, using a new pseudorandom unitary primitive.

Miryam Mi-Ying Huang et al. · Added

  • Preprint
  • Not peer reviewed

A preprint extends bit-vector checks to larger quantum error-correcting circuits

Original title: Generalised Bit-Vector Abstractions for Formal Verification of Quantum Error-Detection and Entanglement Circuits over {H,X,C-NOT}: CSS Constructions, Soundness, and Mutation-Based Validation

A preprint reports an SMT-based abstraction verified on larger error-correcting and GHZ circuits with up to 262,144 qubits.

Arun Govindankutty · Added