Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Syndrome-as-Header: A Quantum Label-Switching Architecture via Uncorrectable Error Injection
IlKwon Sohn, Ju-Bong Kim, Kwangil Bae +2 more·Jul 16, 2026
Scaling quantum networks beyond point-to-point links requires packet forwarding that can tolerate control-plane timing uncertainty. Existing optical-burst switching (OBS) and quantum-wrapper-based packet switching (QW) rely on external classical head...
A generalized variational quantum linear solver on photonic platform
Kang Gao, Zhao-An Wang, Ze-Guo Wang +3 more·Jul 16, 2026
Based on a photonic computing platform, we experimentally validate a generalized variational quantum linear solver (VQLS) by systematically solving four-dimensional linear equation systems across different fields. In the complex field, in addition to...
Perturbation Analysis of Maximal Quantum Leakage
Zijia Zhao, Shuixin Xiao, Farhad Farokhi·Jul 16, 2026
Maximal quantum leakage (MQL) is a worst-case information leakage measure that quantifies an adversary's inference advantage gained from accessing quantum encoding of classical data with arbitrary measurements. While MQL admits an exact characterizat...
Quantum correlations of tripartite mixed states in the black hole quantum atmosphere
Anqi Zhang, Yanze Zheng, Xiaofen Huang +1 more·Jul 16, 2026
We investigate quantum state texture, genuine multipartite entanglement, and tripartite nonlocality of a tripartite mixed state in the black hole quantum atmosphere. By introducing the Hartle-Hawking local temperature into the Bogoliubov coefficients...
Improving Dynamical Decoupling for Trapped-Ion QCCD Quantum Computers
William M. Watkins, Leigh M. Norris, Ross Hutson +3 more·Jul 16, 2026
We examine the impact of scheduling errors on dynamical decoupling (DD) in trapped-ion quantum charge-coupled devices (QCCDs) and develop better strategies for reducing memory errors. In the QCCD architecture, qubit transport and control introduce st...
Global drivers and barriers to the public acceptance of autonomous vehicles: Evidence from 17 countries
Antonios Saravanos·Jul 16, 2026
This study investigated the public acceptance of Society of Automotive Engineers Level 3 conditionally automated cars, which can self-drive under certain specified conditions but require the human driver to remain ready to resume control when request...
Imaginarity as a Resource within Quantum Coherence: Geometric Decomposition and Operational Conversion
Meng-Li Guo, Nannan Guan, Bo Li +2 more·Jul 16, 2026
We establish a rigorous framework that identifies imaginarity as a fundamental resource inherent in quantum coherence. By means of a geometric decomposition, we partition coherence into distinct imaginarity and residual components, thereby revealing ...
Efficient quantum algorithm for Heisenberg spin systems
Sergey Bravyi, David Gosset, Yinchen Liu +1 more·Jul 15, 2026
We consider a broad family of Heisenberg-type quantum spin systems that were studied by Suzuki and Fisher in 1971. This family includes, for example, the Heisenberg antiferromagnet on any bipartite graph. The ground and Gibbs states of these models a...
Unified Uncertainty Quantification Framework Bridging Noisy Quantum Backends Across Variational Quantum Algorithms and Quantum Signal Processing
Priyabrata Senapati, Vibin Abraham, Qiang Guan +1 more·Jul 15, 2026
We present an uncertainty quantification (UQ) framework for application level benchmarking and characterization of noisy quantum backends. The framework compares two workload classes under one statistical pipeline: noisy intermediate scale quantum (N...
Circuit complexity lower bounds for quantum spin glasses
Omar Al-Ghattas, David Gamarnik·Jul 15, 2026
A central question in quantum information theory is the circuit complexity of states arising from standard many-body models. We study this question for quantum $p$-spin glasses, random Hamiltonians whose interactions act on $p$-tuples of qubits throu...
State-independent uncertainty relations on multipartite spin $1/2$-systems
Yiling Wang, Kailash Misra, Naihuan Jing·Jul 15, 2026
Uncertainty relations quantify fundamental limits on simultaneous measurement of quantum observables. While conventional formulations are state-dependent, state-independent uncertainty relations (SIURs) impose universal bounds determined solely by th...
Unified monogamy and polygamy relations for multipartite systems
Yue Cao, Naihuan Jing, Kailash Misra +1 more·Jul 15, 2026
For a bipartite entanglement measure $\mathcal{E}$ that satisfies the $γ$th-power monogamy inequality (Eq.~\eqref{e:chap1-ineq1}), and for its assisted counterpart $\mathcal{E}_a$ that obeys the $δ$th-power polygamy inequality (Eq.~\eqref{e:chap1-ine...
Collapse and Inversion of the Josephson Potential in a Strongly Driven Superconducting Circuit
Sercan Deve, Marius Villiers, Marijn A. Morssink +2 more·Jul 15, 2026
Superconducting circuits embedding Josephson junctions leverage microwave drives for control and measurement of quantum states. Although increasing the drive power is desirable for improving the efficiency of these operations, it eventually triggers ...
Quantum Markov Chains for an Asymmetric Mixed Ising-XY Model on a Cayley Tree
Farrukh Mukhamedov·Jul 15, 2026
We study a mixed quantum Ising-$XY$ model on the semi-infinite rooted Cayley tree of order two. For every vertex $u$, the edge $\langle u,(u,1)\rangle$ carries an $XY$ interaction and the edge $\langle u,(u,2)\rangle$ carries an Ising interaction. Us...
Towards a monolithic platform for coupling superconducting circuits to low-loss microwave phonons in AlScN on 4H-SiC
Yuanchen Deng, William W. Roberts, Sueli Skinner-Ramos +12 more·Jul 15, 2026
Hybrid superconducting-phonon quantum processing is promising for cavity QED, measurement-based quantum computing, and other quantum applications. Relative to microwave photons at the same frequency, phonons can provide ultra-compact footprints, extr...
General theory of monitored Quantum Reservoir Computing
Oriol Morguí-Sancho, Gonzalo Manzano, Gian Luca Giorgi +1 more·Jul 15, 2026
Quantum reservoir computing (QRC) provides a powerful framework for processing temporal data using quantum dynamics, but incorporating measurements into the reservoir remains a fundamental challenge and distinctive feature with respect to classical s...
An end-to-end quantum algorithm for weakly nonlinear plasma physics with superquadratic speedup
Bjorn K. Berntson, David Jennings, Matteo Lostaglio +1 more·Jul 15, 2026
Nonlinear kinetic plasma simulation is high-dimensional and classically demanding, while quantum algorithms face different bottlenecks: embedding nonlinear dynamics into a linear computation, loading dense field-interaction data, and efficiently extr...
Disorder-enhanced compressibility of Floquet random quantum circuits
Francesca De Franco, Dante M. Kennes, David J. Luitz +2 more·Jul 15, 2026
Current quantum hardware is limited by noise and decoherence, which restrict the depth of unitary circuits that can be implemented with high fidelity. We investigate how the compressibility of time-evolution operators depends on the dynamical regime ...
Real-Time Detection of Charge Jumps in Superconducting Qubits with a Convolutional Neural Network
Daniel Gaytan-Villarreal, Peter Meiring, Daniel Baxter +6 more·Jul 15, 2026
Ionizing radiation from cosmic rays and gammas can induce discontinuous jumps in the environmental charge of superconducting qubits (charge jumps), causing correlated errors that challenge fault-tolerant quantum computing while simultaneously providi...
Non-Hermitian Holographic Flows to Little Rip Cosmologies
Daniel Arean, David Garcia-Fariña, Juan F. Pedraza·Jul 15, 2026
Spacelike singularities supported by matter satisfying the null energy condition (NEC) are expected to fall within the Belinski--Khalatnikov--Lifshitz (BKL) paradigm. We show that controlled violations of the NEC in holography can lead to different b...