Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Deterministic preparation of entangled Dicke states
Hui Wang, Marlan O. Scully, Girish S. Agarwal·Aug 23, 2026
Dicke states $|J=N/2,m\rangle$ of a collection of $N$ atoms were central to Dicke's theory of superradiance. Except for the fully polarized end states, they are entangled many-body states; in particular, the single-excitation Dicke state is the W sta...
Entanglement governs early-time growth of randomness in projected ensembles
Thuwaragesh Jayachandran, Wai-Keong Mok·Aug 23, 2026
Deep thermalization concerns the emergence of universal pure-state statistics in projected ensembles at late times, yet the mechanism governing the initial growth of randomness remains unclear. Here, we study the short-time dynamics of projected ense...
Towards Actionable Visualization: Ten Years Later, What Generative AI Changes and What It Cannot
Leonel Merino, Mohammad Ghafari, Oscar Nierstrasz·Aug 23, 2026
Ten years ago, we surveyed software visualization research under the assumption that the challenge for adoption was matching developers' needs with techniques. Generative AI might have made that assumption obsolete by driving the cost of producing a ...
Quantum Optomechanics with Imperfect Mirrors and Casimir-Polder Effect of Atoms with Different Dynamic Polarizabilities: A Unified Treatment via a Microscopic Model
Bergen Dahl, Bei-Lok Hu·Aug 22, 2026
This work aims at bringing the microphysics model of quantum optomechanics (QOM) proposed in [1] and developed in [2, 3] one step closer to be applicable to realistic experimental conditions, specifically, for imperfect mirrors, and for real material...
Conditional Gaussian filtering by Arthurs--Kelly readout in a three-mode cluster wire
B. M. Rodríguez-Lara, J. A. Mendoza-Fierro·Aug 22, 2026
Measurement readout programs the Gaussian operation implemented by a continuous-variable cluster wire. For the standard three-node wire, momentum homodyne readout gives an additive parity channel with finite-squeezing noise. We classify the pattern-r...
qiskit-qudits: A Qiskit Extension for Simulating Qudit Circuits
Francesco Pudda·Aug 22, 2026
qiskit-qudits is a Qiskit extension that simulates d-level qudits by encoding each one into m = ceil(log_2 d) qubits. Qudit gates are exposed as ordinary Qiskit Gate and ControlledGate subclasses, and operations that are not unitary gates (measuremen...
A Cavity-Interfaced Register of Trapped-Ion Qubits with Multi-Second Coherence
James Bate, Johannes Helgert, Marco Canteri +2 more·Aug 22, 2026
Scalable quantum networks require generating remote entanglement faster than decoherence erases it, calling for nodes that combine efficient light-matter interfaces with long coherence times. Cavity-coupled trapped ions are a promising platform for n...
Quantifying Nonstabilizerness of Codeword-Stabilized Codes
Yuan Liu, Ke-Mi Xu·Aug 22, 2026
Fault-tolerant quantum computation requires non-Clifford gates, which stabilizer codes cannot supply transversally. Non-stabilizer codes are the natural place to look for them, yet no quantitative theory of the nonstabilizerness (or magic) carried by...
Finite-Resolution Limits on Quantum Uniqueness
Seramika Ariwahjoedi, Sameer Ahmad Mir, Mir Faizal·Aug 22, 2026
The Stone-von Neumann theorem makes canonical quantization unique only after one imposes strong continuity of the Weyl translation groups. We show that this continuity assumption cannot be certified by any finite-resolution interrogation of the Weyl ...
TENSKEL: A Combinatorial Observable Tensor for Structured Measurement and Reconstruction
Yvan Richard·Aug 22, 2026
Many imaging problems seek to reconstruct underlying configurations from partial observable measurements. While reconstruction algorithms operate on these measurements, the observable organization induced by the measurement process is rarely represen...
Automating detection of Two-Level Systems in Superconducting Qubits
Rama Khalil, Cameron J. Kopas, Avinash Pathapati +9 more·Aug 22, 2026
Microscopic two-level system (TLS) defects remain a primary mechanism of decoherence and operational instability in superconducting transmon qubits, necessitating scalable and automated methods for their characterization. Here, we present and benchma...
Towards a Digital Twin for the Ground to QEYSSat Quantum Link
Henri P. N. Morin, Alex Maierean, Brendon L. Higgins +3 more·Aug 22, 2026
Simulations of physical systems require high-fidelity models to accurately represent reality. Simple models may be analytically tractable, but may not be sufficiently representative of reality for the given application. The cost of this simplicity is...
Surface-Code Quantum Error Correction for Molecular Tweezer Arrays: Encoding, Layout, and Correlated Noise
Niharika Verma, Utpal Roy·Aug 22, 2026
Polar molecules trapped in optical tweezer arrays offer a promising platform for quantum information processing, providing precise control and long-range interactions that enable high-fidelity gate operations. We investigate quantum error correction ...
Experimental Investigation of Tunable-Order Hilbert-Space Ergodicity
Zou-Wei Pan, Wenquan Liu, Xing Rong·Aug 22, 2026
Hilbert-space ergodicity (HSE) provides a new framework for studying thermalization in driven quantum systems, complementing the eigenstate thermalization hypothesis, which is restricted to static systems. This ergodicity is hierarchical: by quantify...
How Far Can You Do Nothing On a Quantum Computer?
Nitay Mayo, Tal Mor, Aryeh Lev Zabokritskiy·Aug 22, 2026
We present a route-resolved comparative assessment of Rigetti's Cepheus-1-108Q and IBM Heron-r2 processors using the established 'do-nothing' state-transfer protocol. Rather than proposing a new protocol, we use this deterministic, low-complexity tas...
Belief Propagation-based Disentanglers for Tensor Network State Preparation
Tomasz Szołdra, Peter Schmelcher·Aug 22, 2026
We develop a quantum circuit synthesis method for preparing a class of tensor network states. The scheme applies to states tractable with belief propagation (BP), a tensor network gauging scheme which recently allowed for classical simulations at lar...
Noise-Symmetry Optimization of Quantum Error-Corrected Metrology
Shuyun Su, Shengshi Pang·Aug 22, 2026
Quantum error correction (QEC) codes have emerged as a powerful tool to protect quantum-enhanced metrology against noise. However, the ability to correct errors alone does not guarantee high metrological sensitivity, as the encoded states may become ...
Monitored free fermions under periodic driving
Aditi Chakrabarty, Alexander D. Mirlin, Igor Poboiko·Aug 22, 2026
We investigate analytically and numerically a one-dimensional periodically driven free-fermionic system subjected to monitoring of the local particle density. Based on the analytical approach that describes the long-wavelength physics of the time-dep...
Nonreciprocal Control of the Goos--Hänchen Shift via the Barnett Effect in Cavity Magnomechanics
Shah Fahad, Gao Xianlong·Aug 22, 2026
We propose a theoretical scheme for realizing a tunable nonreciprocal Goos-Hänchen shift (GHS) in a hybrid cavity magnomechanical system. The setup consists of a rotating yttrium iron garnet sphere embedded in a microwave cavity, with magnetic-dipole...
Critical Topological Photonics in Synthetic Dimensions
Mingyuan Chen, Yuwei Jing, Franco Nori +1 more·Aug 22, 2026
Topological states and criticality have long been regarded as incompatible ingredients: the former requires a finite spectral gap, whereas the latter demands its closure. Guided by this view, topological photonics has focused almost exclusively on ga...