Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Probabilistic Computers for MIMO Detection: From Sparsification to 2D Parallel Tempering
M Mahmudul Hasan Sajeeb, Corentin Delacour, Kevin Callahan-Coray +3 more·Jan 14, 2026
Probabilistic computers built from p-bits offer a promising path for combinatorial optimization, but the dense connectivity required by real-world problems scales poorly in hardware. Here, we address this through graph sparsification with auxiliary c...
Casimir effect with dielectric matter in salted water and implications at the cell scale
Larissa Inácio, Felipe S. S. Rosa, Astrid Lambrecht +2 more·Jan 13, 2026
The Casimir interaction in salted water contains a universal contribution of electromagnetic fluctuations that makes it of a longer range than previously thought. The universal contribution dominates non universal ones at the distances relevant for a...
Impact of control signal phase noise on qubit fidelity
Agata Barsotti, Paolo Marconcini, Gregorio Procissi +1 more·Jan 13, 2026
As qubit decoherence times are increased and readout technologies are improved, nonidealities in the drive signals, such as phase noise, are going to represent a crucial limitation to the fidelity achievable at the end of complex control pulse sequen...
Quantifying the Relationship Between Strain and Bandgap in Thin Ga$_2$Se$_2$
Lottie L. Murray, Eric Herrmann, Igor Evangelista +3 more·Jan 13, 2026
We present a rigorous analysis that combines theory, simulation, and experimental measurements to quantify the relationship between strain and bandgap in two dimensional gallium selenide (Ga$_2$Se$_2$). Experimentally, we transfer thin Ga$_2$Se$_2$ f...
Collective inhibition of light scattering from atoms into an optical cavity at a magic frequency
Á. Kurkó, B. Gábor, D. Varga +8 more·Jan 13, 2026
We report on the observation of a new magic frequency within the hyperfine structure of the D2 line of ${}^{87}$Rb atoms at which the scattering of light into a high-finesse cavity is suppressed by an interplay between quantum interference and the st...
Obfuscation of Arbitrary Quantum Circuits
Miryam Mi-Ying Huang, Er-Cheng Tang·Jan 13, 2026
Program obfuscation aims to conceal a program's internal structure while preserving its functionality. A central open problem is whether an obfuscation scheme for arbitrary quantum circuits exists. Despite several efforts having been made toward this...
Demonstration Of A Quantum Magnetometer Chip Based On Proprietary And Scalable 4H-Silicon Carbide Technology
P. A. Stuermer, D. Wirtitsch, T. Steidl +14 more·Jan 13, 2026
This work presents an industrially scalable, power-efficient and high-performance quantum magnetometer chip based on proprietary 4H-silicon carbide (SiC) technology, leveraging wafer-scale fabrication techniques to optimize V2 silicon vacancy color c...
Plutarch: Toward Scalable Operational Parallelism on Racetrack-Shaped Trapped-Ion Processors
Enhyeok Jang, Hyungseok Kim, Yongju Lee +3 more·Jan 13, 2026
A recent advancement in quantum computing shows a quantum advantage of certified randomness on the racetrack processor. This work investigates the execution efficiency of this architecture for general-purpose programs. We first explore the impact of ...
Emergent chiral Higgs mode in $π$-flux frustrated lattices
Maria Lanaro, Lorenzo Maffi, Marco Di Liberto·Jan 13, 2026
Neutral-atom quantum simulators provide a powerful platform for realizing strongly correlated phases, enabling access to dynamical signatures of quasiparticles and symmetry breaking processes. Motivated by recent observations of quantum phases in flu...
Exploring Bell Nonlocality with Extremal Non-Signaling Boxes
Emmanuel Zambrini Cruzeiro, Junior R. Gonzales-Ureta, Raman Choudhary +3 more·Jan 13, 2026
Extremal non-signaling (ENS) boxes are correlations that correspond to vertices of the non-signaling polytope of a Bell scenario. Neither quantum theory nor any theory for ideal measurements allows for ENS boxes. That is, according to quantum theory,...
Simultaneous nondestructive measurement of many polar molecules using Rydberg atoms
Jeremy T. Young, Kang-Kuen Ni, Alexey V. Gorshkov·Jan 13, 2026
Tweezer arrays of polar molecules present new opportunities for quantum science and quantum information. However, a major challenge, especially in bialkali molecule platforms, is the fact that current measurement schemes for the internal states are d...
Observation of Unidirectional s-p Orbital Topological Edge States in Driven Photonic Lattices
Gayathry Rajeevan, Sebabrata Mukherjee·Jan 13, 2026
Time-periodic modulation of a static system is a powerful method for realizing robust unidirectional topological states. So far, all such realizations have been based on interactions among $s$ orbitals, without incorporating inter-orbital couplings. ...
Superadditivity of Zero-Error Capacity in Noisy Classical and Perfect Quantum Channel Pairs
Ambuj, Anushko Chattopadhyay, Kunika Agarwal +2 more·Jan 13, 2026
We demonstrate superadditivity of one-shot zero-error classical capacity in an asymmetric communication setting where a noisy classical channel is used in parallel with a perfect quantum channel. Each channel individually supports only a fixed number...
A 10 Megahertz Spatial Light Modulator
Xin Wei, Zeyang Li, Abhishek V. Karve +3 more·Jan 13, 2026
Rapid and programmable shaping of light fields is central to modern microscopy, display technologies, optical communications and sensing, quantum engineering, and quantum information processing. Current wavefront shaping technologies face a fundament...
The Quantum Complexity of String Breaking in the Schwinger Model
Sebastian Grieninger, Martin J. Savage, Nikita A. Zemlevskiy·Jan 13, 2026
String breaking, the process by which flux tubes fragment into hadronic states, is a hallmark of confinement in strongly-interacting quantum field theories. A suite of quantum complexity measures is examined using Matrix Product States to characteriz...
Breaking the Orthogonality Barrier in Quantum LDPC Codes
Kenta Kasai·Jan 13, 2026
Classical low-density parity-check (LDPC) codes are a widely deployed and well-established technology, forming the backbone of modern communication and storage systems. It is well known that, in this classical setting, increasing the girth of the Tan...
Optimal logical Bell measurements on stabilizer codes with linear optics
Simon D. Reiß, Peter van Loock·Jan 13, 2026
Bell measurements (BMs) are ubiquitous in quantum information and technology. They are basic elements for quantum commmunication, computation, and error correction. In particular, when performed on logical qubits encoded in physical photonic qubits, ...
Single-Period Floquet Control of Bosonic Codes with Quantum Lattice Gates
Tangyou Huang, Lei Du, Lingzhen Guo·Jan 13, 2026
Bosonic codes constitute a promising route to fault-tolerant quantum computing. {Existing Floquet protocols enable analytical construction of bosonic codes but typically rely on slow adiabatic ramps with thousands of driving periods.} In this work, w...
Enhancing classical simulation with noisy quantum devices
Ruiqi Zhang, Fuchuan Wei, Zhaohui Wei·Jan 13, 2026
As quantum devices continue to improve in scale and precision, a central challenge is how to effectively utilize noisy hardware for meaningful computation. Most existing approaches aim to recover noiseless circuit outputs from noisy ones through erro...
Local Magnetometry from Measurement-Induced Dissipation
Rishith Reddy, Parveen Kumar, Ankur Das·Jan 13, 2026
Magnetic phases are commonly identified through macroscopic magnetization, yet many ordered states, including antiferromagnets and altermagnets, possess a vanishing net moment despite distinct local spin structure. We show that such an order can be a...