Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Enhanced Squeezing and Faster Metrology from Layered Quantum Neural Networks
Nickholas Gutierrez, Rodrigo Araiza Bravo, Susanne Yelin·Dec 9, 2025
Spin squeezing is a powerful resource for quantum metrology, and recent hardware platforms based on interacting qubits provide multiple possible architectures to generate and reverse squeezing during a sensing protocol. In this work, we compare the s...
Islands of Instability in Nonlinear Wavefunction Models in the Continuum: A Different Route to "Chaos"
W. David Wick·Dec 9, 2025
In two previous papers the author described ``Islands of Instability" that may appear in wavefunction models with nonlinear evolution (of a type proposed originally in the context of the Measurement Problem). Such ``IsoI" represent a new scenario for...
Certified Private Quantum Time Ticks Away Faster than Any Classical Clock
Karl Svozil·Dec 9, 2025
We introduce the concept of an entangled clock, where the flow of time is operationally defined by the discrete registration of measurement outcomes on a singlet state. Comparing the synchronization rate of two such clocks against classical models, w...
Subradiant collective states for precision sensing via transmission spectra
Diego Zafra-Bono, Oriol Rubies-Bigorda, Susanne F. Yelin·Dec 9, 2025
When an ensemble of quantum emitters interacts with a common radiation field, their emission becomes collective, giving rise to superradiant and subradiant states, characterized by broadened and narrowed linewidths. In this work, we propose to harnes...
On modeling quantum point contacts in quantum Hall systems
Prasoon Kumar, Kyrylo Snizhko·Dec 9, 2025
Quantum point contacts (QPC) are a key instrument in investigating the physics of edge excitations in the quantum Hall effect. However, at not-so-high bias voltage values, the predictions of the conventional point QPC model often deviate from the exp...
Dressed-state Hamiltonian engineering in a strongly interacting solid-state spin ensemble
Haoyang Gao, Nathaniel T. Leitao, Siddharth Dandavate +7 more·Dec 9, 2025
In quantum science applications, ranging from many-body physics to quantum metrology, dipolar interactions in spin ensembles are controlled via Floquet engineering. However, this technique typically reduces the interaction strength between spins, and...
Quantum bootstrap for central potentials
Scott Lawrence, Brian McPeak·Dec 9, 2025
We study the quantum-mechanical bootstrap as it applies to the bound states of several central potentials in three dimensions. As part of this effort, we show how the bootstrap approach may be applied to ``non-algebraic'' potentials, such as the Yuka...
Optimizing the dynamical preparation of quantum spin lakes on the ruby lattice
DinhDuy Vu, Dominik S. Kufel, Jack Kemp +3 more·Dec 9, 2025
Quantum spin liquids are elusive long-range entangled states. Motivated by experiments in Rydberg quantum simulators, recent excitement has centered on the possibility of dynamically preparing a state with quantum spin liquid correlation even when th...
Universal spectral correlations in open Floquet systems with localized leaks
Edson M. Signor, Miguel A. Prado Reynoso, Bidhi Vijaywargia +2 more·Dec 9, 2025
We show that introducing a localized leak in Floquet systems with time-reversal symmetry leads to universal spectral correlations governed by the non-Hermitian symmetry class $\mathrm{AI}^{\dagger}$, associated with complex-symmetric Ginibre random m...
Persistent coherent quantum dynamics in 2D long-range magnets via magnon binding
Vighnesh Dattatraya Naik, Markus Heyl·Dec 9, 2025
The dynamics of 2D long-range quantum magnets represents a current frontier in experimental physics such as in Rydberg atomic systems or trapped ions. In this work we address theoretical challenges in understanding these dynamics by combining large-s...
The Richness of Bell Nonlocality: Generalized Bell Polygamy and Hyper-Polygamy
Gerard Anglès Munné, Paweł Cieśliński, Jan Wójcik +1 more·Dec 9, 2025
Non-classical quantum correlations underpin both the foundations of quantum mechanics and modern quantum technologies. Among them, Bell nonlocality is a central example. For bipartite Bell inequalities, nonlocal correlations obey strict monogamy: a v...
Swimming against a superfluid flow: Self-propulsion via vortex-antivortex shedding in a quantum fluid of light
Myrann Baker-Rasooli, Tangui Aladjidi, Tiago D. Ferreira +4 more·Dec 9, 2025
A superfluid flows without friction below a critical velocity, exhibiting zero drag force on impurities. Above this threshold, superfluidity breaks down, and the internal energy is redistributed into incoherent excitations such as vortices. We demons...
Extreme statistics as a probe of the superfluid to Bose-glass Berezinskii-Kosterlitz-Thouless transition
Jeanne Colbois, Natalia Chepiga, Shaffique Adam +2 more·Dec 9, 2025
Recent studies of delocalization-localization transitions in disordered quantum chains have highlighted the role of rare, chain-breaking events that favor localization, in particular for high-energy eigenstates related to many-body localization. In t...
Autonomous multi-ion optical clock with on-chip integrated photonic light delivery
Tharon D. Morrison, Joonhyuk Kwon, Matthew A. Delaney +4 more·Dec 9, 2025
Integrated photonics in trapped-ion systems are critical for the realization of applications such as portable optical atomic clocks and scalable quantum computers. However, system-level integration of all required functionalities remains a key challe...
SAQ: Stabilizer-Aware Quantum Error Correction Decoder
David Zenati, Eliya Nachmani·Dec 9, 2025
Quantum Error Correction (QEC) decoding faces a fundamental accuracy-efficiency tradeoff. Classical methods like Minimum Weight Perfect Matching (MWPM) exhibit variable performance across noise models and suffer from polynomial complexity, while tens...
Deterministic randomness extraction for quantum random number generation with partial trust
Pablo Tikas Pueyo, Tomás Fernández Martos, Gabriel Senno·Dec 9, 2025
It is a well-known fact in classical information theory that no deterministic procedure can extract close-to-ideal randomness from an arbitrary entropy source. On the other hand, if additional knowledge about the source is available -- e.g., that it ...
Emergent Non-Markovianity in Logical Qubit Dynamics
Jalan A. Ziyad, Robin Blume-Kohout, Kenneth Rudinger·Dec 9, 2025
Logical qubits encoded in quantum error correcting codes can exhibit non-Markovian dynamical evolution, even when the underlying physical noise is Markovian. To understand this emergent non-Markovianity, we define a Markovianity condition appropriate...
Floquet Topological Frequency-Converting Amplifier
Adrian Parra-Rodriguez, Miguel Clavero-Rubio, Philippe Gigon +3 more·Dec 9, 2025
We introduce a driven-dissipative Floquet model in which a single harmonic oscillator with modulated frequency and decay realizes a non-Hermitian synthetic lattice with an effective electric field gradient in frequency space. Using the Floquet-Green'...
Vacuum Energy and Topological Mass in Interacting Elko and Scalar Field Theories
A. J. D. Farias Junior, A. Smirnov, Herondy F. Santana Mota +1 more·Dec 9, 2025
In this paper, we consider a four-dimensional system composed of a mass-dimension-one fermionic field, also known as Elko, interacting with a real scalar field. Our main objective is to analyze the Casimir effects associated with this system, assumin...
Non-abelian quantum double models from iterated gauging
David Blanik, José Garre-Rubio·Dec 9, 2025
We reconstruct all (2+1)D quantum double models of finite groups from their boundary symmetries through the repeated application of a gauging procedure, extending the existing construction for abelian groups. We employ the recently proposed categoric...