Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,010 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Non-Gaussian Dissipative Quantum Thermometry Beyond Gaussian Bounds
Pritam Chattopadhyay·Dec 3, 2025
The fundamental metrological limits of temperature sensing in open quantum systems remain largely unresolved, particularly regarding the role of non-Gaussian quantum resources. In this letter, we establish analytic bounds on the quantum Fisher inform...
Geometrical structure of the Wigner flow information quantifiers and hyperbolic stability in the phase-space framework
Alex E. Bernardini·Dec 3, 2025
Quantifiers of stationarity, classicality, purity and vorticity are derived from phase-space differential geometrical structures within the Weyl-Wigner framework, after which they are related to the hyperbolic stability of classical and quantum-modif...
More is uncorrelated: Tuning the local correlations of SU($N$) Fermi-Hubbard systems via controlled symmetry breaking
Edoardo Zavatti, Gabriele Bellomia, Matteo Ferraretto +2 more·Dec 3, 2025
Cold-atom experiments based on alkali-like atoms provide us with a tool to experimentally realize Hubbard models with a large number $N$ of components. The value of $N$ can be seen as a new handle to tune the properties of the system, leading to new ...
Edge bits in average symmetry protected topological mixed state
Yoshihito Kuno·Dec 3, 2025
Edge bit in an average symmetry protected topological (ASPT) mixed state is studied. The state is protected by one strong $Z_2$ and one weak (average) $Z_2$ symmetries. As analogous objects of pure symmetry protected topological (SPT) states, the ASP...
Complex Wigner entropy and Fisher control of negativity in an oval quantum billiard
Kyu-Won Park, Jongin Jeong·Dec 3, 2025
We develop a complex-entropy framework for Wigner negativity and apply it to avoided crossings in an oval quantum billiard. For a real Wigner function the Gibbs--Shannon functional becomes complex; its imaginary part, proportional to the Wigner-negat...
Entanglement evolution from entangled multipodal states
Konstantinos Chalas, Pasquale Calabrese, Colin Rylands·Dec 2, 2025
In a periodic lattice system an entangled antipodal pair state, otherwise known as a crosscap state, is a simple two site product state in which spins at antipodal sites are prepared in Bell pairs. Such states have maximal bipartite entanglement and ...
Information dynamics and symmetry breaking in generic monitored $\mathbb{Z}_2$-symmetric open quantum systems
Jacob Hauser, Ali Lavasani, Sagar Vijay +1 more·Dec 2, 2025
We investigate the steady-state phases of generic $\mathbb{Z}_2$-symmetric monitored, open quantum dynamics. We describe the phases systematically in terms of both information-theoretic diagnostics and spontaneous breaking of strong and weak symmetri...
Combinatorial foundations for solvable chaotic local Euclidean quantum circuits in two dimensions
Fredy Yip·Dec 2, 2025
We investigate a graph-theoretic problem motivated by questions in quantum computing concerning the propagation of information in quantum circuits. A graph $G$ is said to be a bounded extension of its subgraph $L$ if they share the same vertex set, a...
Many-body $k$-local ground states as probes for unitary quantum metrology
Majid Hassani, Mengyao Hu, Guillem Müller-Rigat +2 more·Dec 2, 2025
Multipartite quantum states saturating the Heisenberg limit of sensitivity typically require full-body correlators to be prepared. On the other hand, experimentally practical Hamiltonians often involve few-body correlators only. Here, we study the me...
Quantum hypergraph states: a review
Vinícius Salem·Dec 2, 2025
Quantum hypergraph states emerged in the literature as a generalization of graph states, and since then, considerable progress has been made toward implementing this class of genuine multipartite entangled states for quantum information and computati...
Stability of quantum chaos against weak non-unitarity
Yi-Cheng Wang, Ehud Altman, Samuel J. Garratt·Dec 2, 2025
We study the quantum dynamics generated by the repeated action of a non-unitary evolution operator on a system of qubits. Breaking unitarity can lead to the purification of mixed initial states, which corresponds to the loss of sensitivity to initial...
Time-series forecasting with multiphoton quantum states and integrated photonics
Rosario Di Bartolo, Simone Piacentini, Francesco Ceccarelli +4 more·Dec 2, 2025
Quantum machine learning algorithms have very recently attracted significant attention in photonic platforms. In particular, reconfigurable integrated photonic circuits offer a promising route, thanks to the possibility of implementing adaptive feedb...
Tunable giant Purcell enhancement of quantum light emitters by means of acoustic graphene plasmons
Justin Gruber, Mahtab A. Khan, Dirk R. Englund +1 more·Dec 2, 2025
Inspired by the remarkable ability of plasmons to boost radiative emission rates, we propose leveraging acoustic graphene plasmons (AGPs) to realize tunable, giant Purcell enhancements for single-photon, entangled-photon, and multipolar quantum emitt...
Information-Theoretic Constraints on Variational Quantum Optimization: Efficiency Transitions and the Dynamical Lie Algebra
Jun Liang Tan·Dec 2, 2025
Variational quantum algorithms are leading candidates for near-term advantage, yet their scalability is fundamentally limited by the ``Barren Plateau'' phenomenon. While traditionally attributed to geometric concentration of measure, I propose an inf...
Detecting Symmetrizability in Physical Systems
Florian Seitz, Janis Nötzel·Dec 2, 2025
We study the problem of data transmission under the influence of a jammer, which is typical for wireless systems and commonly modeled as an arbitrarily varying channel (AVC) in information theory. AVC fulfilling a certain set of linear equations are ...
Minimal decomposition entropy and optimal representations of absolutely maximally entangled states
N Ramadas·Dec 2, 2025
Understanding and classifying multipartite entanglement is fundamental to quantum information processing. This work focuses on absolutely maximally entangled (AME) states, a class of highly entangled states characterized by their maximal entanglement...
Multi-node quantum key distribution network using existing underground optical fibre infrastructure
Mariella Minder, Andreas Siakolas, Stephanos Yerolatsitis +2 more·Dec 2, 2025
Quantum key distribution (QKD) offers unconditional information security by allowing two distant users to establish a common encryption key resilient to hacking. Resultingly, QKD networks interconnecting critical infrastructure and enabling the secur...
Chiplet technology for large-scale trapped-ion quantum processors
Bassem Badawi, Philip C. Holz, Michael Raffetseder +6 more·Dec 2, 2025
Trapped ions are among the most promising platforms for realizing a large-scale quantum information processor. Current progress focuses on integrating optical and electronic components into microfabricated ion traps to allow scaling to large numbers ...
Quantum LLMs Using Quantum Computing to Analyze and Process Semantic Information
Timo Aukusti Laine·Dec 2, 2025
We present a quantum computing approach to analyzing Large Language Model (LLM) embeddings, leveraging complex-valued representations and modeling semantic relationships using quantum mechanical principles. By establishing a direct mapping between LL...
Full-counting statistics and quantum information of dispersive readout with a squeezed environment
Ming Li, JunYan Luo, Gloria Platero +1 more·Dec 2, 2025
Motivated by the importance of dispersive readout in quantum technology, we study a prototypical dispersive readout setup that is probed by a squeezed vacuum in a time-reversal-symmetric fashion. To this end, we develop a full-counting-statistics fra...