Quantum Computing research · Research Watch · Page 16

Journal article
Review status unknown

Researchers propose hybrid VQE-CVQE quantum algorithm using diabatic state preparation

Original title: Hybrid VQE-CVQE algorithm using diabatic state preparation

A study proposes a hybrid VQE-CVQE quantum algorithm and reports accurate simulated energies on an IBM quantum processor.

John P. T. Stenger et al. · Added 26 Oct 2026 · Released Jun 2026

Conference paper
Review status unknown

Researchers report adaptive post-quantum crypto scheme for 6G vehicle networks

Original title: Adaptive Quantum-Safe Cryptography for 6G Vehicular Networks via Context-Aware Optimization

A preprint proposes a context-aware system that switches post-quantum cryptography schemes in vehicle networks to balance speed and security.

Poushali Sengupta et al. · Added 26 Oct 2026 · Released Jan 2026

Conference paper
Review status unknown

Researchers propose satellite-assisted entanglement pre-distribution for quantum networks

Original title: Satellite-Aided Entanglement Distribution for Optimized Quantum Networks

A conference paper reports that adding satellite links to pre-distributed quantum entanglement can cut resource use in small networks.

Jakob Kaltoft Søndergaard et al. · Added 26 Oct 2026 · Released Feb 2025

Preprint
Not peer reviewed
From Google Quantum AI

Researchers report OTOC fluctuations survive concentration in random quantum circuits

Original title: Towards verifiable quantum advantage with random circuits: Observables that survive concentration

A preprint proves that observable fluctuations used for verifiable quantum advantage persist even as circuits grow large.

Added 26 Oct 2026

Preprint
Not peer reviewed
From Parity Quantum Computing

Preprint describes qubit method for simulating fermion lattices without extra qubits

Original title: Fermion lattices can be simulated by same-size qubit lattices with $\mathcal{O}(1)$ interaction overhead

A preprint reports a way to simulate two-dimensional fermion lattices on equally sized qubit lattices, trading qubit overhead for circuit depth.

Added 26 Oct 2026

Preprint
Not peer reviewed
From Alice & Bob

Researchers report multi-photon dissipation using a dc-biased Josephson junction

Original title: Engineering multi-photon dissipation with a dc-voltage-biased Josephson junction

A preprint describes engineering one-, two- and four-photon loss with a dc-voltage-biased SQUID, aimed at stabilising cat qubits.

Added 26 Oct 2026

Preprint
Not peer reviewed

Preprint compares counterdiabatic QAOA variants for simulating the Schwinger model

Original title: Counterdiabatic quantum optimization for efficient state preparation in the Schwinger model

A preprint reports that counterdiabatic-driven QAOA variants can prepare Schwinger model ground states with lower circuit depth than standard QAOA.

Ethan Laval et al. · Added 26 Oct 2026

Journal article
Peer reviewed
From PsiQuantum, Airbus

Researchers find only modest, bounded quantum speedups for fluid dynamics simulation

Original title: An end-to-end quantum algorithm for nonlinear fluid dynamics with bounded quantum advantage

A peer-reviewed study maps the limits of quantum algorithms for simulating turbulent fluid flow via the lattice Boltzmann equation.

Added 26 Oct 2026

Journal article
Review status unknown

Researchers report noise can boost analog quantum kernels for non-Markovianity estimation

Original title: Noise-enhanced quantum kernels on analog quantum computers for estimating the non-Markovianity from sparse temporal data

A study finds that operational noise can improve analog and hybrid quantum kernel models used to estimate non-Markovianity from sparse data.

Hsiang-Wei Huang et al. · Added 26 Oct 2026

Preprint
Not peer reviewed

A preprint reviews how to verify quantum compilers actually preserve meaning

Original title: Testing and Verification of Quantum Compilers through Assurance Contracts and Evidence

A preprint surveys quantum compiler testing and verification methods, arguing evidence must match the specific obligation being checked.

Furqan Nasir et al. · Added 26 Oct 2026

Preprint
Not peer reviewed

Preprint finds decohering ancillas break self-correction in GKP error correction

Original title: Gottesman-Kitaev-Preskill error-correction with decohered resources

A preprint reports that environmental decoherence of ancilla qubits turns GKP error correction into a leaking, non-self-correcting process.

Rajendra S. Bhati et al. · Added 26 Oct 2026

Preprint
Not peer reviewed

Preprint finds QAOA expectation values as hard to compute as counting optimal cuts

Original title: Evaluating QAOA expectation values can be as hard as counting optimal solutions

A preprint reports that evaluating QAOA expectation values at depth two or more is as hard as counting optimal MaxCut solutions, not just finding one.

Stuart Hadfield · Added 26 Oct 2026

Preprint
Not peer reviewed
From Q-CTRL

Researchers report quantum learning gain from a single squeezed light mode, no entanglement needed

Original title: Quantum advantage in learning single mode bosonic channels

A preprint reports that a single squeezed-light mode can learn a quantum channel exponentially faster than classical probes, without entanglement.

Added 26 Oct 2026

Preprint
Not peer reviewed
From Nokia Bell Labs

Preprint proposes chip-based quantum memory design using lithium tantalate and ytterbium crystals

Original title: Scalable Hybrid Device Architecture on Thin-Film Lithium Tantalate for Long Distance Quantum Network Nodes with Atomic Frequency Comb Quantum Memories

A preprint outlines a hybrid photonic chip architecture pairing thin-film lithium tantalate with ytterbium-doped crystals for quantum network memories.

Added 25 Oct 2026

Preprint
Not peer reviewed

Preprint reports optimal query complexity for simulating quantum Lindblad dynamics

Original title: Query-optimal quantum simulation of Lindblad evolution

A preprint describes a quantum algorithm that closes a known gap between lower and upper bounds for simulating open quantum systems.

Chunhao Wang et al. · Added 25 Oct 2026

Preprint
Not peer reviewed

Preprint reports electro-optic time lens fixes mismatched photon interference

Original title: Quantum interference between spectral bandwidth mismatched photons

A preprint describes using an electro-optic time lens to restore quantum interference between photons of different spectral bandwidths without filtering losses.

Jan Krzyżanowski et al. · Added 25 Oct 2026

Preprint
Not peer reviewed
From Quantum Scopes

Preprint reports all-fiber telecom entangled-photon source built from off-the-shelf parts

Original title: Broadband Telecom Entanglement from an All-Fiber Type-0 Sagnac Source

A preprint describes a low-cost fiber Sagnac source producing telecom-band entangled photon pairs with moderate entanglement quality.

Added 25 Oct 2026

Preprint
Not peer reviewed

A preprint reports an analytical shortcut for comparing quantum error-correction codes

Original title: A Cross-Platform Analysis of Practical Quantum Error Correction Codes

Researchers propose a lightweight analytical framework to estimate logical error rates across quantum hardware and distributed QEC designs.

Bryan Pan et al. · Added 25 Oct 2026

Preprint
Not peer reviewed

Preprint extends Poincaré duality to quantum codes, enabling new logical gates

Original title: Poincaré Duality and Multiplicative Structures on Quantum Codes

A preprint generalises Poincaré duality to sheaf-based quantum codes and uses it to build new fault-tolerant logical gates.

Yiming Li et al. · Added 25 Oct 2026

Preprint
Not peer reviewed

Researchers report quantum speedup for estimating nested expectations like optimal stopping

Original title: Optimal Quantum Speedups for Repeatedly Nested Expectation Estimation

A preprint proposes a quantum algorithm estimating repeatedly nested expectations with near-quadratic speedup over classical methods.

Yihang Sun et al. · Added 25 Oct 2026

523 entries