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Daily Quantum Computing Research & News • September 23, 2025 • 04:17 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

TASI/CERN/KITP Lecture Notes on "Toward Quantum Computing Gauge Theories of Nature"

Zohreh DavoudiPublished: 2025-07-21
A hallmark of the computational campaign in nuclear and particle physics is the lattice-gauge-theory program. It continues to enable theoretical predictions for a range of phenomena in nature from the underlying Standard Model. The emergence of a new computational paradigm based on quantum computing, therefore, can introduce further advances in this program. In particular, it is believed that quan...

Enhanced fill probability estimates in institutional algorithmic bond trading using statistical learning algorithms with quantum computers

Axel Ciceri, Austin Cottrell, Joshua Freeland, Daniel Fry, Hirotoshi Hirai, Philip Intallura, Hwajung Kang, Chee-Kong Lee, Abhijit Mitra, Kentaro Ohno, Das Pemmaraju, Manuel Proissl, Brian Quanz, Del Rajan, Noriaki Shimada, Kavitha YograjPublished: 2025-09-22
The estimation of fill probabilities for trade orders represents a key ingredient in the optimization of algorithmic trading strategies. It is bound by the complex dynamics of financial markets with inherent uncertainties, and the limitations of models aiming to learn from multivariate financial time series that often exhibit stochastic properties with hidden temporal patterns. In this paper, we f...

Parton Distributions on a Quantum Computer

Jiunn-Wei Chen, Yu-Ting Chen, Ghanashyam MeherPublished: 2025-06-20
We perform the first quantum computation of parton distribution function (PDF) with a real quantum device by calculating the PDF of the lightest positronium in the Schwinger model with IBM quantum computers. The calculation uses 10 qubits for staggered fermions at five spatial sites and one ancillary qubit. The most critical and challenging step is to reduce the number of two-qubit gate depths to ...

A Provably Secure Framework for Noise-Aware Delegated Quantum Computation and Storage

Sanidhya Gupta, Ankur RainaPublished: 2024-03-12
As large-scale quantum computers become a reality, they will likely exist as centralized cloud resources accessible to a broad user base. Securely delegating private quantum computations to untrusted servers is therefore a foundational challenge. This requires rigorous, provable guarantees of privacy (blindness), cor- rectness (completeness), and integrity against malicious actions (verifiability)...

Quantum-Computer-Based Verification of Quantum Thermodynamic Uncertainty Relation

Nobumasa Ishida, Yoshihiko HasegawaPublished: 2024-02-29
Quantum thermodynamic uncertainty relations establish fundamental trade-offs between the precision achievable in quantum systems and associated thermodynamic quantities such as entropy production or dynamical activity. While foundational, empirical demonstrations have thus far been confined to specific cases, either assuming time-reversal symmetry or involving particular measurement types, leaving...

Task-Oriented Gaussian Optimization for Non-Gaussian Resources in Continuous-Variable Quantum Computation

Boxuan Jing, Feng-Xiao Sun, Qiongyi HePublished: 2025-09-19
In continuous-variable systems, non-Gaussian resources are essential for achieving universal quantum computation that lies beyond classical simulation. Among the candidate states, the cubic phase state stands out as the simplest form of single-mode non-Gaussian resource, yet its experimental preparation still remains a great challenge. Although a variety of approximate schemes have been proposed t...

Discrete Flow-Based Generative Models for Measurement Optimization in Quantum Computing

Isaac L. Huidobro-Meezs, Jun Dai, Rodrigo A. Vargas-HernándezPublished: 2025-09-18
Achieving chemical accuracy in quantum simulations is often constrained by the measurement bottleneck: estimating operators requires a large number of shots, which remains costly even on fault-tolerant devices and is further exacerbated on today's noisy hardware by finite circuit fidelity and error-mitigation overhead. Addressing this challenge involves a multiobjective optimization problem that b...

Fault-tolerant quantum computing with a high-rate symplectic double code

Naoyuki Kanomata, Hayato GotoPublished: 2025-09-18
High-rate and large-distance quantum codes are expected to make fault-tolerant quantum computing more efficient, but most of them lack efficient fault-tolerant encoded-state preparation methods. We propose such a fault-tolerant encoder for a [[30, 6, 5]] symplectic double code. The advantage of this code is its compactness, in addition to its high encoding rate, allowing for early experimental rea...

Capturing the Page Curve and Entanglement Dynamics of Black Holes in Quantum Computers

Talal Ahmed Chowdhury, Kwangmin Yu, Muhammad Asaduzzaman, Raza Sabbir SufianPublished: 2024-12-19
Quantum computers are emerging technologies expected to become important tools for exploring various aspects of fundamental physics in the future. Therefore, we pose the question of whether quantum computers can help us to study the Page curve and the black hole information dynamics, which has been a key focus in fundamental physics. In this regard, we rigorously examine the qubit transport model,...

Quantum Computing Universal Thermalization Dynamics in a (2+1)D Lattice Gauge Theory

Niklas Mueller, Tianyi Wang, Or Katz, Zohreh Davoudi, Marko CetinaPublished: 2024-07-31
Simulating non-equilibrium phenomena in strongly-interacting quantum many-body systems, including thermalization, is a promising application of near-term and future quantum computation. By performing experiments on a digital quantum computer consisting of fully-connected optically-controlled trapped ions, we study the role of entanglement in the thermalization dynamics of a $Z_2$ lattice gauge the...

🏢 Company Papers

Magnetic-Field and Temperature Limits of a Kinetic-Inductance Traveling-Wave Parametric Amplifier

Lucas M. Janssen, Farzad Faramarzi, Henry G. LeDuc, Sahil Patel, Gianluigi Catelani, Peter K. Day, Yoichi Ando, Christian DickelPublished: 2025-09-18
Kinetic-inductance traveling-wave parametric amplifiers (KI-TWPAs) offer broadband near-quantum-limited amplification with high saturation power. Due to the high critical magnetic fields of high-kinetic-inductance materials, KI-TWPAs should be resilient to magnetic fields. In this work, we study how magnetic field and temperature affect the performance of a KI-TWPA based on a thin-NbTiN inverse mi...

SiDiaC: Sinhala Diachronic Corpus

Nevidu Jayatilleke, Nisansa de SilvaPublished: 2025-09-22
SiDiaC, the first comprehensive Sinhala Diachronic Corpus, covers a historical span from the 5th to the 20th century CE. SiDiaC comprises 58k words across 46 literary works, annotated carefully based on the written date, after filtering based on availability, authorship, copyright compliance, and data attribution. Texts from the National Library of Sri Lanka were digitised using Google Document AI...

Noise Protected Logical Qubit in a Open Chain of Superconducting Qubits with Ultrastrong Interactions

Roberto Stassi, Shilan Abo, Daniele Lamberto, Ye-Hong Chen, Adam Miranowicz, Salvatore Savasta, Franco NoriPublished: 2025-09-22
To achieve a fault-tolerant quantum computer, it is crucial to increase the coherence time of quantum bits. In this work, we theoretically investigate a system consisting of a series of superconducting qubits that alternate between XX and YY ultrastrong interactions. By considering the two-lowest energy eigenstates of this system as a {\it logical} qubit, we demonstrate that its coherence is signi...

Comparison of trapped-ion entangling gate mechanisms for mixed species

V. M. Schäfer, A. C. Hughes, O. Bazavan, K. Thirumalai, G. Pagano, C. J. Ballance, D. M. LucasPublished: 2025-09-22
Entangling gates are an essential capability of quantum computers. There are different methods for implementing two-qubit gates, with respective advantages and disadvantages. We investigate the experimentally relevant differences and commonalities of laser-based $\sigma_z\otimes\sigma_z$ light-shift and $\sigma_\phi\otimes\sigma_\phi$ Moelmer-Soerensen gates, highlighting the phases of experimenta...

WALLABY Pilot Survey: the extensive interaction of NGC 4532 and DDO 137 with the Virgo cluster

L. Staveley-Smith, K. Bekki, A. Boselli, L. Cortese, N. Deg, B. -Q. For, K. Lee-Waddell, T. O'Beirne, M. E. Putman, C. Sinnott, J. Wang, T. Westmeier, O. I. Wong, B. Catinella, H. Dénes, J. Rhee, L. Shao, A. X. Shen, K. SpekkensPublished: 2025-09-22
As part of the pilot survey of the Widefield ASKAP L-band Legacy All-sky Survey (WALLABY), high-resolution neutral atomic hydrogen (HI) observations of the dwarf galaxy pair NGC 4532/DDO 137 (WALLABY J123424+062511) have revealed a huge (48 kpc) bridge of gas between the two galaxies, as well as numerous arms and clouds which connect with the even longer (0.5 Mpc) tail of gas previously discovered...

Conditional Diffusion Models for CT Image Synthesis from CBCT: A Systematic Review

Alzahra Altalib, Chunhui Li, Alessandro PerelliPublished: 2025-09-22
Objective: Cone-beam computed tomography (CBCT) provides a low-dose imaging alternative to conventional CT, but suffers from noise, scatter, and artifacts that degrade image quality. Synthetic CT (sCT) aims to translate CBCT to high-quality CT-like images for improved anatomical accuracy and dosimetric precision. Although deep learning approaches have shown promise, they often face limitations in ...

Hybrid Trapping of Cold Atoms with Surface Forces and Blue-Detuned Evanescent Light on a Nanophotonic Waveguide

Riccardo Pennetta, Antoine Glicenstein, Philipp Schneeweiss, Jürgen Volz, Arno RauschenbeutelPublished: 2025-09-22
We demonstrate a novel hybrid nanophotonic trap for cold neutral atoms, leveraging surface forces for attraction and blue-detuned evanescent light for repulsion. We attribute the attractive potential to a combination of Casimir-Polder interactions and electrostatic charges distributed on the waveguide surface. Despite the trap's shallow depth, we efficiently load atoms into it via adiabatic transf...

Accelerated characterization of two-level systems in superconducting qubits via machine learning

Avinash Pathapati, Olli Mansikkamäki, Alexander Tyner, Alexander V. BalatskyPublished: 2025-09-22
We introduce a data-driven approach for extracting two-level system (TLS) parameters-frequency $\omega_{TLS}$, coupling strength $g$, dissipation time $T_{TLS, 1}$, and the pure dephasing time $T^{\phi}_{TLS, 2}$, labelled as a 4-component vector $\vec{q}$, directly from simulated spectroscopy data generated for a single TLS by a form of two-tone spectroscopy. Specifically, we demonstrate that a c...

📚 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...