Papers
Live trends in quantum computing research, updated daily from arXiv.
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16,712 papers in 12 months (-57% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Emergence of Gaussian entanglement and non-Gaussianity in high-harmonic generation driven by bright squeezed light
J. Rivera-Dean, M. Even-Tzur, M. F. Ciappina +3 more·Jun 21, 2026
High harmonic generation (HHG) is a highly nonlinear optical process in which radiation from a strong driving field is up-converted into its high-order harmonics. In atomic systems, this nonlinearity manifests itself through the intensity scaling of ...
An interpretable closed form for entanglement entropy from bitstrings, guided by a graph neural network
Anas Saleh·Jun 21, 2026
The empirical bitstring distribution is the most accessible observable on Rydberg-atom arrays, but the bipartite von~Neumann entropy it constrains is far costlier to obtain. We present a six-term linear closed form for the entropy, built on bitstring...
Lewis-Ermakov approach for the time-dependent two-level system
M. Huerta-Sandoval, I. Ramos-Prieto, H. M. Moya-Cessa·Jun 21, 2026
We construct an explicit Lewis-Ermakov-type dynamical invariant for time-dependent two-level systems by exploiting their algebraic correspondence with the time-dependent harmonic oscillator through the $su(2)$ and $su(1,1)$ algebras, which share the ...
Testing Continuous Spontaneous Localization by Coherently Simulating a Measurement with a Nanoparticle
Peter Renkel·Jun 21, 2026
We propose a direct Ramsey-interferometric test of Continuous Spontaneous Localization (CSL) in which a microscopic system controls the motion of a charged nanoparticle held in a harmonic trap. The microscopic system is prepared in a two-branch Ramse...
Generalization of catability for parity-less cat states
Michal Matulík, Jan Provazník, Petr Marek +1 more·Jun 21, 2026
We extend the nullifier-based certification framework of catability from parity-defined coherent cat states to parity-less Kerr cat states. Since Kerr cats cannot be distinguished by parity alone, we replace the parity component of the original nulli...
Design and Development of a Neuromorphic Silicon Suite: PVT Sensing, Stochastic LIF Inference, On-Chip STDP Learning, and Crossbar Programming
Poornima Kumaresan, Santhosh Sivasubramani·Jun 21, 2026
Edge neuromorphic systems need compact, configurable hardware that combines probabilistic inference, local learning, and an interface to emerging analogue memory. We present four interface-compatible digital IP blocks implemented as standard-cell CMO...
Multi-Level Resistive Synapses for On-Chip Neural Networks: A Physics-Based Design of a Memristive Crossbar Fabric with Quasi-Continuous Conductance States
David Alejandro Trejo Pizzo·Jun 21, 2026
Building on resistive communication, this paper presents a physics-based design of an on-chip neural network with multi-level memristive synapses supporting a dense spectrum of conductance states. Derived from ionic transport physics, we develop a st...
When does a state-dependent proto-area define a bulk geometry?
Ruiliang Li·Jun 21, 2026
An area-like function for each boundary region need not come from a single bulk geometry. Cross-region locality requires the data for all regions to factor through a single boundary-length map. We formulate this common-source condition as a nonlinear...
Hierarchical Logical Processor on the Rotated Surface Code with Shuttle Buses
Zi-Han Chen, Ming-Cheng Chen, Chao-Yang Lu +1 more·Jun 21, 2026
Quantum platforms with beyond-planar connectivity provide new opportunities for fault-tolerant quantum computation (FTQC). While quantum low-density parity-check (qLDPC) codes offer high encoding efficiency, their direct implementation requires non-l...
The Quantum Hamming Bound in Arbitrary Local Dimension
Yu-Xuan Zhang, Jing-Ling Chen·Jun 21, 2026
The quantum Hamming bound is the finite-length sphere-packing count for exact quantum error correction: the code dimension times the number of correctable local error patterns must fit inside the ambient Hilbert space. For nondegenerate codes this fo...
Liouvillian Geometry of Multidimensional Spectra: Pathway Transport and Observational Holonomy in Open Quantum Systems
Eric R. Bittner, Carlos Silva-Acuña, Hao Li·Jun 21, 2026
Liouville pathways provide the conceptual foundation for interpreting multidimensional spectroscopies and are commonly represented as independent contributions to the nonlinear response. In open quantum systems, however, the effective reduced Liouvil...
Geometric Response in Open Quantum Systems: Coherence, Curvature, and Susceptibility
Eric R. Bittner, Carlos Silva-Acuña·Jun 21, 2026
We develop a response-geometric framework for open quantum systems by decomposing the stationary-state response tensor into symmetric and antisymmetric sectors. The symmetric sector defines a metric-like response tensor governing local susceptibility...
Hierarchy of mixed symmetry protected topological states in extended cluster states under subsystem decoherence
Yoshihito Kuno, Takahiro Orito·Jun 21, 2026
We study the effect of subsystem decoherence to an extended cluster state which is a symmetry protected topological (SPT) phase. The model includes many subsystem $Z_2$ symmetries. We report that subsystem decoherence induces local charge fluctuation...
Quantum Metric Bound State of Light
Jinchao Zhao, Rongning Liu, Xue-Yang Song +1 more·Jun 21, 2026
The spatial confinement of defect-induced bound states is conventionally governed by the effective mass in dispersive bands. More recently, Compact Localized States (CLSs) arising from exact destructive interference have been utilized to achieve conf...
A Three-Layer Architecture for Fault-Tolerant Quantum Computing
Zhirao Wang, Zhou You, Yiming Huang +4 more·Jun 21, 2026
Fault tolerance is an indispensable prerequisite for constructing large-scale universal quantum computers. Drawing philosophies from classical computer architecture, this paper presents a hardware-agnostic three-layer high-level architectural framewo...
Scholarly Production and Public Health Determinants in Context of Funding: The Case of IoMT Research:
Peter Kokol·Jun 21, 2026
The Internet of Medical Things (IoMT) represents a transformative technology that connects medical devices, sensors, and healthcare systems to enable real-time monitoring, data sharing, and advanced decision-making in healthcare. While the technical ...
Perturbative Renormalization and Universality Diagram for Long-Range Quantum Criticality
Zhiyi Li, Zhijie Fan, Kun Chen +1 more·Jun 21, 2026
Experimental progress in quantum simulators highlights the role of long-range (LR) interactions in reshaping quantum criticality and stabilizing exotic phases beyond the short-range (SR) paradigm. We study ferromagnetic long-range quantum $O(n)$ mode...
Quantum Otto engine with field-decoupled idle levels in a non-Hermitian XY model
Maimaitiyiming Tusun, Fang Zhao·Jun 21, 2026
We investigated a quantum Otto cycle in a non-Hermitian two-qubit XY model with a staggered imaginary magnetic field. The energy spectrum of this system naturally decomposes into a pair of working levels that depend on the external field and a pair o...
Enhancing Road Safety: An IoT-Based Accident Detection and Prevention Mechanism
Prabhu Pugalenthi, Pramod Krishnaa Dhanbalan·Jun 21, 2026
Road traffic accidents remain a critical global crisis, consistently serving as a primary driver of preventable mortality and severe injury. These incidents are frequently precipitated by human error, including overspeeding, driving under the influen...
Vibe Calibration: Autonomous Bring-up of a 112-Qubit Superconducting Quantum Processor by a Skill-Orchestrating Language Agent
Huikai Xu, Jiaxiu Han, Shigang Ou +11 more·Jun 21, 2026
Superconducting quantum computing is one of the most mature solid-state platforms for quantum computation, with processors exceeding one hundred qubits. Yet further scaling toward fault-tolerant quantum computing is increasingly constrained by calibr...