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Daily Quantum Computing Research & News • November 15, 2025 • 04:17 CST

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Highlights: 5 top items selected
News items: 10 articles gathered
Technology papers: 10 papers fetched
Company papers: 8 papers from major players
Highlighted papers: 5 papers collected
Total sources: 6 data feeds processed

🌟 Highlights

📰 News Items

📄 Technology Papers

Impacts of Decoder Latency on Utility-Scale Quantum Computer Architectures

Abdullah Khalid, Allyson Silva, Gebremedhin A. Dagnew, Tom Dvir, Oded Wertheim, Motty Gruda, Xiangzhou Kong, Mia Kramer, Zak Webb, Artur Scherer, Masoud Mohseni, Yonatan Cohen, Pooya RonaghPublished: 2025-11-13
The speed of a fault-tolerant quantum computer is dictated by the reaction time of its classical electronics, that is, the total time required by decoders and controllers to determine the outcome of a logical measurement and execute subsequent conditional logical operations. Despite its importance, the reaction time and its impact on the design of the logical microarchitecture of a quantum compute...

Quantum Algorithms for Computing Maximal Quantum $f$-divergence and Kubo-Ando means

Trung Hoa Dinh, Nhat A. NghiemPublished: 2025-11-13
The development of quantum computation has resulted in many quantum algorithms for a wide array of tasks. Recently, there is a growing interest in using quantum computing techniques to estimate or compute quantum information-theoretic quantities such as Renyi entropy, Von Neumann entropy, matrix means, etc. Motivated by these results, we present quantum algorithms for computing the maximal quantum...

Efficient Berry Phase Calculation via Adaptive Variational Quantum Computing Approach

Martin Mootz, Yong-Xin YaoPublished: 2025-06-23
We present an adaptive variational quantum algorithm to estimate the Berry phase accumulated by a nondegenerate ground state under cyclic, adiabatic evolution of a time-dependent Hamiltonian. Our method leverages cyclic adiabatic evolution of the Hamiltonian and employs adaptive variational quantum algorithms for state preparation and evolution, optimizing circuit efficiency while maintaining high...

Quantum Computational Structure of $SU(N)$ Scattering

Navin McGinnisPublished: 2025-11-13
We study scattering of particles which obey an $SU(N)$ global symmetry through the lens of quantum computation and quantum algorithms. We show that for scattering between particles which transform in the fundamental or anti-fundamental representations, i.e. qudits, all 2-2 scattering amplitudes can be constructed from only three quantum gates. Further, for any $N$, all 2-2 scattering channels are ...

Quantum computing and the stable set problem

Aljaž Krpan, Janez Povh, Dunja PucherPublished: 2024-05-21
Given an undirected graph, the stable set problem asks to determine the cardinality of the largest subset of pairwise non-adjacent vertices. This value is called the stability number of the graph, and its computation is an NP-hard problem. In this paper, we solve the stable set problem using the D-Wave quantum annealer. By formulating the problem as a quadratic unconstrained binary optimization pr...

Assessing Finite Scalability in Early Fault-Tolerant Quantum Computing for Homogeneous Catalysts

Yanbing Zhou, Athena Caesura, Corneliu Buda, Xavier Jackson, Clena M. Abuan, Shangjie GuoPublished: 2025-11-13
As quantum hardware advances toward fault-tolerant operation, an intermediate stage known as early fault-tolerant quantum computing (EFTQC) is emerging, where partial error correction enables meaningful computation. In this regime, the ability of quantum processors to scale in size and depth has become a crucial factor shaping their achievable performance. This study investigates how finite scalab...

Mapping Game Theory to Quantum Systems: Nash Equilibria via Neutral Atom Computing

Giovanni Ferrannini, Dario di Gregorio, Federico FissorePublished: 2025-11-13
Nash equilibria are crucial for understanding game behavior and systems in economics, physics, biology, and computer science. A significant application arises from the connection between Nash equilibria and optimization problems . However, finding Nash equilibria is challenging due to its NP-Hard complexity, specifically within the PPAD class. By exploiting the correspondence between Maximum Indep...

Coherent Optical Quantum Computing-Aided Resource Optimization for Transportation Digital Twin Construction

Huixiang Zhang, Mahzabeen EmuPublished: 2025-11-12
Constructing realistic digital twins for applications such as training autonomous driving models requires the efficient allocation of real-world data, yet data sovereignty regulations present a major challenge. To address this, we tackle the optimization problem faced by metaverse service providers (MSPs) responsible for allocating geographically constrained data resources. We propose a two-stage ...

Hybrid Photonic-Quantum Reservoir Computing For Time-Series Prediction

Oishik Kar, Aswath Babu HPublished: 2025-11-12
Motivated by the perspective of advanced time-series prediction and exploitation of Quantum Reservoir Computing (QRC), we explored the design and implementation of a Hybrid Photonic-Quantum Reservoir Computing (HPQRC) paradigm. It brings together the high-speed parallelism of photonic systems with the quantum reservoir's capacity of modeling complex, nonlinear dynamics, and hence acts as a powerfu...

Bridging Quantum Computing and Nuclear Structure: Atomic Nuclei on a Trapped-Ion Quantum Computer

Sota Yoshida, Takeshi Sato, Takumi Ogata, Masaaki KimuraPublished: 2025-09-25
We demonstrate quantum simulations of strongly correlated nuclear many-body systems on the RIKEN-Quantinuum Reimei trapped-ion quantum computer, targeting ground states of oxygen, calcium, and nickel isotopes. By combining a hard-core-boson representation of the nuclear shell model with a pair-unitary coupled-cluster doubles ansatz, we achieve sub-percent relative error in the ground-state energie...

🏢 Company Papers

Impacts of Decoder Latency on Utility-Scale Quantum Computer Architectures

Abdullah Khalid, Allyson Silva, Gebremedhin A. Dagnew, Tom Dvir, Oded Wertheim, Motty Gruda, Xiangzhou Kong, Mia Kramer, Zak Webb, Artur Scherer, Masoud Mohseni, Yonatan Cohen, Pooya RonaghPublished: 2025-11-13
The speed of a fault-tolerant quantum computer is dictated by the reaction time of its classical electronics, that is, the total time required by decoders and controllers to determine the outcome of a logical measurement and execute subsequent conditional logical operations. Despite its importance, the reaction time and its impact on the design of the logical microarchitecture of a quantum compute...

The Local Group L-band Survey: Probing Cold Atomic Gas in IC10 with Neutral Hydrogen Absorption

Ioana A. Stelea, Snezana Stanimirovic, Nickolas M. Pingel, Hongxing Chen, Eric W. Koch, Adam K. Leroy, Erik Rosolowsky, Chang-Goo Kim, Alberto D. Bolatto, Julianne J. Dalcanton, Michael P. Busch, Harrisen Corbould, J. R. Dawson, Cosima Eibensteiner, Amanda Kepley, Melanie Krips, Claire E. Murray, Julia Roman-Duval, Daniel R. Rybarczyk, Evan D. Skillman, Elizabeth Tarantino, Vicente Villanueva, Thomas G. WilliamsPublished: 2025-11-13
We present the first localized detections of the cold neutral medium (CNM) in IC10, offering a rare view of dense atomic gas in a low-metallicity (0.27 solar metallicity) dwarf galaxy. As a low-metallicity starburst, IC10's interstellar medium conditions could reflect small-scale physical conditions that mirror those of early galaxies, providing a unique window into the heating and cooling process...

The Grand Challenge of Quantum Applications

Ryan Babbush, Robbie King, Sergio Boixo, William Huggins, Tanuj Khattar, Guang Hao Low, Jarrod R. McClean, Thomas O'Brien, Nicholas C. RubinPublished: 2025-11-12
This perspective outlines promising pathways and critical obstacles on the road to developing useful quantum computing applications, drawing on insights from the Google Quantum AI team. We propose a five-stage framework for this process, spanning from theoretical explorations of quantum advantage to the practicalities of compilation and resource estimation. For each stage, we discuss key trends, m...

Enhancing Photon Identification with Neural Network Methods

Yuval Frid, Liron BarakPublished: 2025-11-13
We investigate photon--pion discrimination in regimes where electromagnetic showers overlap at the scale of calorimeter granularity. Using full detector simulations with fine-grained calorimeter segmentation of approximately $0.025\times0.025$ in $(η,φ)$, we benchmark three approaches: boosted decision trees (BDTs) on shower-shape variables, dense neural networks (DNNs) on the same features, and a...

Collisional and magnetic effects on the polarization of the solar oxygen infrared triplet

Moncef Derouich, Saleh QutubPublished: 2025-11-13
Context: The scattering polarization of the infrared (IR) triplet of neutral oxygen (O\,\textsc{i}) near 777\,nm provides a powerful diagnostic of solar atmospheric conditions. However, interpreting such polarization requires a rigorous treatment of isotropic depolarizing collisions between O\,\textsc{i} atoms and neutral hydrogen. Aims: We aim to investigate the combined effects of collisional ...

Shortcuts to adiabaticity for coherent atom transport in an adjustable family of two-dimensional optical lattices

Sascha H. Hauck, Vladimir M. StojanovicPublished: 2025-11-13
Motivated by the compelling need for coherent atom transport in a variety of emerging quantum technologies, we investigate such transport on the example of an adjustable family of two-dimensional optical lattices [L. Tarruell {\em et al.}, Nature (London) 483, 302 (2012)] that includes square, triangular, honeycomb, dimerized, and checkerboard lattices as its special cases; dynamical optical latti...

Astrophysical significance of the isomer $^{119m}$Ag demonstrated through direct mass measurement

F. Rivero, M. Brodeur, J. A. Clark, B. Liu, G. W. Misch, M. R. Mumpower, W. S. Porter, D. Ray, G. Savard, T. M. Sprouse, A. A. Valverde, D. P. Burdette, A. Cannon, A. T. Gallant, A. M. Houff, K. Kolos, F. G. Kondev, R. Orford, C. Quick, K. S. Sharma, L. VarrianoPublished: 2025-04-04
The abundance of elements heavier than iron produced via the astrophysical rapid-neutron capture process depends sensitively on the atomic mass of the involved nuclei as well as the behavior of a few special types of nuclear isomers called astromers. High-precision mass measurements of $^{119}$Cd, $^{119}$Ag and their respective isomeric states have been performed with the Phase Imaging-Ion Cyclot...

Surrogate Quantum Circuit Design for the Lattice Boltzmann Collision Operator

Monica Lăcătuş, Matthias MöllerPublished: 2025-07-16
This study introduces a framework for learning a low-depth surrogate quantum circuit (SQC) that approximates the nonlinear, dissipative, and hence non-unitary Bhatnagar-Gross-Krook (BGK) collision operator in the lattice Boltzmann method (LBM) for the D2Q9 lattice. By appropriately selecting the quantum state encoding, circuit architecture, and measurement protocol, non-unitary dynamics emerge nat...

📚 Highlighted Papers

Quantum enhanced Monte Carlo simulation for photon interaction cross sections

Authors: Euimin Lee, Sangmin Lee, Shiho KimSubmitted: Submitted arXiv: arXiv:2502.14374
Abstract: …as the dominant attenuation mechanism, we demonstrate that our approach reproduces classical probability distributions with high fidelity. Simulation results obtained via the IBM Qiskit quantum simulator reveal a quadratic speedup in amplitude estimation compared to conventional Monte C...

Time-adaptive single-shot crosstalk detector on superconducting quantum computer

Authors: Haiyue Kang, Benjamin Harper, Muhammad Usman, Martin SeviorSubmitted: Submitted arXiv: arXiv:2502.14225
Abstract: …in two scenarios: simulation using an artificial noise model with gate-induced crosstalk and always-on idlings channels; and the simulation using noise sampled from an IBM quantum computer parametrised by the reduced HSA error model. The presented results show our method's efficacy hing...

Quantum simulation of a qubit with non-Hermitian Hamiltonian

Authors: Anastashia Jebraeilli, Michael R. GellerSubmitted: Submitted arXiv: arXiv:2502.13910
Abstract: …-broken regime surrounding an exceptional point. Quantum simulations are carried out using IBM superconducting qubits. The results underscore the potential for variational quantum circuits and machine learning to push the boundaries of quantum simulation, offering new methods for explor...

Comment on "Energy-speed relationship of quantum particles challenges Bohmian mechanics"

Aurélien Drezet, Dustin Lazarovici, Bernard Michael Nabet
In their recent paper [Nature 643, 67 (2025)], Sharaglazova et al. report an optical microcavity experiment yielding an "energy-speed relationship" for quantum particles in evanescent states, which they infer from the observed population transfer between two coupled waveguides. The authors argue tha...