Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Resolving the Edge of a Quantum Pyramid
Alvan Arulandu·Jun 12, 2026
Standing on the shoulders of giants, we resolve the quantum pyramids conjecture, confirming the globally information-optimal measurement for an ensemble of equiangular equiprobable pure states, as conjectured by Englert and Řeháček (arXiv:0905.0510)....
Quantum geometrical description of hole spin qubits far away from the $Γ$-point
Zoltán György, Dmitry Miserev, Jelena Klinovaja +1 more·Jun 12, 2026
Hole spin qubits provide one of the leading platforms for spin-based quantum computing due to their large intrinsic spin-orbit interaction (SOI), which enables fast electrical manipulation. The SOI of planar quantum dots has mostly been investigated ...
Quasilinear Equivalence Checking for Detector Error Models
Mathys Rennela·Jun 12, 2026
A Detector Error Model (DEM) is a structured representation of error mechanisms in quantum circuits, which has gained popularity in quantum compilation pipelines for its ability to capture fault-tolerance at a circuit level. It lists error mechanisms...
No classical particle limit for massless quanta
Riccardo Falcone, Simon Fuchs·Jun 12, 2026
We investigate whether relativistic massless classical particles may emerge as the classical limit of massless quanta. To address this question independently of any specific dynamics, environment, or pointer basis, we develop an axiomatic and purely ...
Spin disorder competing with positional symmetry breaking governs the metal-insulator behavior in oxide paramagnets
Jia-Xin Xiong, Xiuwen Zhang, Alex Zunger·Jun 12, 2026
Numerous transition-metal oxides have low-temperature antiferromagnetic (AFM) states and high-temperature paramagnetic (PM) phases, where the AFM state is usually insulating while the PM phase can be either insulating or metallic. Without involving s...
Tensor network manifolds and Riemannian fundamental theorem for tensor networks
Pablo Páez-Velasco·Jun 12, 2026
Tensor networks provide a powerful framework for efficiently representing high-dimensional data and many-body quantum states. Endowing tensor networks with a Riemannian manifold structure provides a natural setting for numerical optimization and anal...
On-site interactions in quantum thermal machines: efficiency, rectification and entanglement beyond local and global master equations
Salvatore Araceli, Teddy H. M. Ong, Baptiste Debecker +4 more·Jun 12, 2026
Advances in experimental techniques have opened new routes for harnessing non-equilibrium dynamics in mesoscopic quantum systems. In this context, we study the impact of on-site interactions on the transport properties of a continuous quantum thermal...
Trap-Quenched Matter-Wave Optics for Dual Species Lensing
Gabriel Müller, Timothé Estrampes, Claudia Puertas González +12 more·Jun 12, 2026
Dual-species atom interferometry in space promises precise tests of the Universality of Free Fall (UFF), with a sensitivity that grows quadratically with the extended interrogation time accessible in weightlessness. These tests demand exquisite contr...
Scaling native entanglement generation in layered semiconductors with quasi-phase matching
Benjamin Braun, Andrea Alessandrini, Josip Bajo +10 more·Jun 12, 2026
Efficient generation of entangled photons typically relies on spontaneous parametric down-conversion (SPDC) in phase-matched macroscopic nonlinear media. However, generating entanglement under phase-matching constraints requires additional bulk optic...
Dissipation-induced superradiance in matter coupled to a self-interacting cavity
Sebastian Schmid, Matteo Soriente, Oded Zilberberg +1 more·Jun 12, 2026
Light-matter interactions are often modeled via the Dicke model, namely, by two-level systems coupled to a cavity mode. Alas, the threshold for superradiance is often experimentally inaccessible or hindered by light's diamagnetic term. Here, within t...
Quantum gates with parametrically driven multi-qubit couplers
Verena Feulner, Marjan Fani, Lukas Heunisch +2 more·Jun 12, 2026
Superconducting quantum processors could significantly profit from enhanced connectivity together with precise control of interactions and gates between qubits. Here we investigate plaquettes of four qubits that are coupled via a central tunable coup...
Extending Covariant Fluctuation Theorems into Quantum Regime through Quasiprobability Approach
Ji-Hui Pei, Tingzhang Shi, Jin-Fu Chen +1 more·Jun 12, 2026
The covariant formulation of stochastic thermodynamics requires treating the stochastic work as a 4-vector, posing significant challenges for quantum systems due to the non-commutativity. We introduce a new quasiprobability distribution for the work ...
Physics-Informed Variational Quantum Classifier for Phase Detection in Strongly Correlated Matter
Hugo Catalá, Ezequiel Valero, Germán Rodrigo·Jun 12, 2026
The characterisation of quantum phases in strongly correlated systems is a crucial milestone for the deployment of quantum sensors. In this work, we present a Physics-Informed Variational Quantum Classifier (VQC) designed to detect the topological ph...
Spin-orbit coupling by design in quantum state engineering of atomically defined quantum dots
Hermann Osterhage, Julian H. Strik, Ivan Ado +4 more·Jun 12, 2026
Tuning spin-orbit coupling is essential in controlling both spin and charge in confined semiconductor nanostructures, yet it is rarely a truly controllable parameter. Here, we show control over the spin-orbit Hamiltonian in quantum dots and the resul...
Quantum Horizon: An evaluation of quantum computing as a threat to Bitcoin and Ethereum
Iosif M. Gershteyn, Jacob A. Alber·Jun 12, 2026
Quantum computing poses a real, broad-based, but bounded and substantially mitigable threat to Bitcoin and Ethereum. We separate the two quantum algorithms that public discussion routinely conflates: Shor's algorithm breaks the elliptic-curve signatu...
Sensitivity of polaron-molecule observables to MDR/GUP-like ultraviolet deformations at low energies via quantum computing
Ezequiel Valero, Hugo Catala, Victor Ilisie +1 more·Jun 12, 2026
We show that impurity many-body observables can display enhanced sensitivity to ultraviolet deformations of generalized-uncertainty-principle and modified-dispersion-relation type at accessible energy scales. Using a deformed polaron-molecule Hamilto...
QCI Connect: A Modular Full-Stack Quantum Computing Platform
Eric Bertok, Hannes Busche, Florian Drinkler +17 more·Jun 12, 2026
In a world of various competing quantum computing architectures, hardware-agnostic, full-stack platforms are necessary to bring the full power of quantum computing hardware to domain experts via the cloud. QCI Connect and its Software Development Kit...
Optimal Decoding of Small Codes by Density Matrix Propagation
Anthony Benois, Pierre Cussenot, Grégoire Misguich +2 more·Jun 12, 2026
Accurate and efficient decoding is a crucial component for achieving fault-tolerant quantum computing. Realistic circuit-level noise introduces temporal correlations and degeneracy, making optimal (maximum-likelihood) decoding computationally intract...
Experimental realization of the complete seven-phase Anderson-localization landscape
Yao Qin, Chao Yang, Yuzhe Zhang +2 more·Jun 12, 2026
Anderson localization has evolved far beyond the conventional dichotomy between extended and localized states. Modern localization theory predicts a complete transport hierarchy comprising extended, critical, and localized phases together with all co...
Dealing with locality in QAOA
Mithilesh Kumar, Yusuf Tahir·Jun 12, 2026
Shallow-depth QAOA on sparse, high-diameter MaxCut instances faces a locality bottleneck: at depth \(p\), local observables can depend only on a bounded neighborhood of the circuit interaction graph. We propose a transport-augmented QAOA that keeps t...