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Daily Quantum Computing Research & News • October 02, 2025 • 04:16 CST

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📊 Today's Data Collection

News items: 15 articles gathered
Technology papers: 10 papers fetched
Company papers: 8 papers from major players
Highlighted papers: 5 papers collected
Total sources: 5 data feeds processed

📰 News Items

📄 Technology Papers

Estimating quantum relative entropies on quantum computers

Yuchen Lu, Kun FangPublished: 2025-01-13
Quantum relative entropy, a quantum generalization of the renowned Kullback-Leibler divergence, serves as a fundamental measure of the distinguishability between quantum states and plays a pivotal role in quantum information science. Despite its importance, efficiently estimating quantum relative entropy between two quantum states on quantum computers remains a significant challenge. In this work,...

Nonlinear quantum computation by amplified encodings

Matthias Deiml, Daniel PeterseimPublished: 2024-11-25
This paper presents a novel framework for high-dimensional nonlinear quantum computation that exploits tensor products of amplified vector and matrix encodings to efficiently evaluate multivariate polynomials. The approach enables the solution of nonlinear equations by quantum implementations of the fixed-point iteration and Newton's method, with quantitative runtime bounds derived in terms of the...

Measurement-based quantum computation using two-component BECs

Genji FujiiPublished: 2022-03-16
In this paper, we propose measurement-based quantum computation (MBQC) using two-component Bose-Einstein condensates (BECs). Graph states are naturally introduced by analogy with the qubit case. An arbitrary state of one logical qubit can be obtained through a three-body measurement. Furthermore, we propose methods for implementing CZ gates on the components of coherent states of BECs in a g...

A Perspective on Quantum Computing Applications in Quantum Chemistry using 25--100 Logical Qubits

Yuri Alexeev, Victor S. Batista, Nicholas Bauman, Luke Bertels, Daniel Claudino, Rishab Dutta, Laura Gagliardi, Scott Godwin, Niranjan Govind, Martin Head-Gordon, Matthew Hermes, Karol Kowalski, Ang Li, Chenxu Liu, Junyu Liu, Ping Liu, Juan M. Garcia-Lustra, Daniel Mejia-Rodriguez, Karl Mueller, Matthew Otten, Bo Peng, Mark Raugus, Markus Reiher, Paul Rigor, Wendy Shaw, Mark van Schilfgaarde, Tejs Vegge, Yu Zhang, Muqing Zheng, Linghua ZhuPublished: 2025-06-24
The intersection of quantum computing and quantum chemistry represents a promising frontier for achieving quantum utility in domains of both scientific and societal relevance. Owing to the exponential growth of classical resource requirements for simulating quantum systems, quantum chemistry has long been recognized as a natural candidate for quantum computation. This perspective focuses on identi...

Fast quantum computation with all-to-all Hamiltonians

Chao YinPublished: 2025-09-29
All-to-all interactions arise naturally in many areas of theoretical physics and across diverse experimental quantum platforms, motivating a systematic study of their information-processing power. Assuming each pair of qubits interacts with $\mathrm{O}(1)$ strength, time-dependent all-to-all Hamiltonians can simulate arbitrary all-to-all quantum circuits, performing quantum computation in time pro...

A Quantum Computer Based on Donor-Cluster Arrays in Silicon

Shihang Zhang, Chunhui Zhang, Guanyong Wang, Tao Xin, Guangchong Hu, Yu He, Peihao HuangPublished: 2025-09-29
Significant advances in silicon spin qubits highlight the potential of silicon quantum dots for scalable quantum computing, given their compatibility with industrial fabrication and long coherence times. In particular, phosphorus (P)-doped spin qubits possess excellent coherence and have demonstrated high-fidelity two-qubit gates exceeding 99.9%. However, scaling P-donor systems is challenging due...

When Federated Learning Meets Quantum Computing: Survey and Research Opportunities

Aakar Mathur, Ashish Gupta, Sajal K. DasPublished: 2025-04-09
Quantum Federated Learning (QFL) is an emerging field that harnesses advances in Quantum Computing (QC) to improve the scalability and efficiency of decentralized Federated Learning (FL) models. This paper provides a systematic and comprehensive survey of the emerging problems and solutions when FL meets QC, from research protocol to a novel taxonomy, particularly focusing on both quantum and fede...

Anticoherent $k$-planes and coding techniques for a 3-qubit scheme of universal quantum computing

L. Aragón-Muñoz, C. Chryssomalakos, A. G. Flores-Delgado, V. Rascón-Barajas, I. Vázquez MotaPublished: 2025-09-27
Toponomic quantum computing (TQC) employs rotation sequences of anticoherent $k$-planes to construct noise-tolerant quantum gates. In this work, we demonstrate the implementation of generalized Toffoli gates, using $k$-planes of spin systems with $s \geq k + 1$, and of the Hadamard gate for a 3-qubit system, using a spin $s \!= \! 15$ 8-plane. We propose a universal quantum computing scheme for 3-...

Leveraging Quantum Computing For Recourse-Based Energy Management Under PV Generation Uncertainty

Daniel Müssig, Mustafa Musab, Markus Wappler, Jörg LässigPublished: 2025-09-27
The integration of distributed energy resources, particularly photovoltaic (PV) systems and electric vehicles (EVs), introduces significant uncertainty and complexity into modern energy systems. This paper explores a novel approach to address these challenges by formulating a stochastic optimization problem that models the uncertain nature of PV power generation and the flexibility of bi-direction...

Edge modes, extended TQFT, and measurement based quantum computation

Gabriel WongPublished: 2023-12-01
Quantum teleportation can be used to define a notion of parallel transport which characterizes the entanglement structure of a quantum state \cite{Czech:2018kvg}. This suggests one can formulate a gauge theory of entanglement. In \cite{Wong:2022mnv}, it was explained that measurement based quantum computation in one dimension can be understood in term of such a gauge theory (MBQC). In this work, w...

🏢 Company Papers

Dynamic Pacing for Real-time Satellite Traffic

Aashish Gottipati, Lili QiuPublished: 2025-07-13
Google's congestion control (GCC) has become a cornerstone for real-time video and audio communication, yet its performance remains fragile in emerging Low Earth Orbit (LEO) networks. In this paper, we study the behavior of videoconferencing systems in LEO constellations. We observe that video quality degrades due to inherent delays and network instability introduced by the high altitude and rapid...

AS400-DET: Detection using Deep Learning Model for IBM i (AS/400)

Thanh Tran, Son T. Luu, Quan Bui, Shoshin NomuraPublished: 2025-06-16
This paper proposes a method for automatic GUI component detection for the IBM i system (formerly and still more commonly known as AS/400). We introduce a human-annotated dataset consisting of 1,050 system screen images, in which 381 images are screenshots of IBM i system screens in Japanese. Each image contains multiple components, including text labels, text boxes, options, tables, instructions,...

Dephasing-assisted diffusive dynamics in superconducting quantum circuits

Yongqi Liang, Changrong Xie, Zechen Guo, Peisheng Huang, Wenhui Huang, Yiting Liu, Jiawei Qiu, Xuandong Sun, Zilin Wang, Xiaohan Yang, Jiawei Zhang, Jiajian Zhang, Libo Zhang, Ji Chu, Weijie Guo, Ji Jiang, Xiayu Linpeng, Song Liu, Jingjing Niu, Yuxuan Zhou, Youpeng Zhong, Wenhui Ren, Ziyu Tao, Dapeng YuPublished: 2024-11-23
Random fluctuations caused by environmental noise can lead to decoherence in quantum systems. Exploring and controlling such dissipative processes is both fundamentally intriguing and essential for harnessing quantum systems to gain practical advantages and deeper insights. In this work, we first demonstrate the diffusive dynamics assisted by controlled dephasing noise in superconducting quantum c...

Electron Wave-Spin Qubit

Ju Gao, Fang ShenPublished: 2025-04-26
As a continuation of our earlier investigations into electron wave--spin~\citep{GaoJOPCO22,EntropyEvaSpin2024}, we analyze the electron spin and its qubit in a cavity by treating the electron as a physical wave obeying the Dirac equation. In this view, a qubit is a current--density configuration whose orientation is fixed by the relative phase, rather than a particle carrying simultaneous ``up'' a...

Vectorised Hashing Based on Bernstein-Rabin-Winograd Polynomials over Prime Order Fields

Kaushik Nath, Palash SarkarPublished: 2025-07-09
We introduce the new AXU hash function decBRWHash, which is parameterised by the positive integer $c$ and is based on Bernstein-Rabin-Winograd (BRW) polynomials. Choosing $c>1$ gives a hash function which can be implemented using $c$-way single instruction multiple data (SIMD) instructions. We report a set of very comprehensive hand optimised assembly implementations of 4-decBRWHash using avx2 SIM...

A dataset and model for recognition of audiologically relevant environments for hearing aids: AHEAD-DS and YAMNet+

Henry Zhong, Jörg M. Buchholz, Julian Maclaren, Simon Carlile, Richard LyonPublished: 2025-08-14
Scene recognition of audiologically relevant environments is important for hearing aids; however, it is challenging, in part because of the limitations of existing datasets. Datasets often lack public accessibility, completeness, or audiologically relevant labels, hindering systematic comparison of machine learning models. Deploying these models on resource-constrained edge devices presents anothe...

ScheduleMe: Multi-Agent Calendar Assistant

Oshadha Wijerathne, Amandi Nimasha, Dushan Fernando, Nisansa de Silva, Srinath PereraPublished: 2025-09-30
Recent advancements in LLMs have contributed to the rise of advanced conversational assistants that can assist with user needs through natural language conversation. This paper presents a ScheduleMe, a multi-agent calendar assistant for users to manage google calendar events in natural language. The system uses a graph-structured coordination mechanism where a central supervisory agent supervises ...

Beyond Entanglement: Diagnosing quantum mediator dynamics in gravitationally mediated experiments

P. George Christopher, S. ShankaranarayananPublished: 2025-06-04
No experimental test to date has provided conclusive evidence on the quantum nature of gravity. Recent proposals, such as the BMV experiment, suggest that generating entanglement could serve as a direct test. Motivated by these proposals, we study a system of three-harmonic oscillator system, with the mediator oscillator operating in two distinct parameter regimes: a heavy mediator regime and a li...

📚 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...