📊 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
−Plugging Leaks in Fault-Tolerant Quantum Computation and Verification
Theodoros Kapourniotis, Dominik Leichtle, Luka Music, Harold Ollivier • Published: 2025-10-03
With the advent of quantum cloud computing, the security of delegated quantum
computation has become of utmost importance. While multiple statistically
secure blind verification schemes in the prepare-and-send model have been
proposed, none of them achieves full quantum fault-tolerance, a prerequisite
for useful verification on scalable quantum computers. In this paper, we
present the first fault-...
MAQCY: Modular Atom-Array Quantum Computing with Space-Time Hybrid Multiplexing
Andrew Byun, Chanseul Lee, Eunsik Yoon, Minhyuk KimMinhyuk Kim, Tai Hyun Yoon • Published: 2025-10-03
We present a modular atom-array quantum computing architecture with
space-time hybrid multiplexing (MAQCY), a dynamic optical tweezer-based
protocol for fully connected and scalable universal quantum computation. By
extending the concept of globally controlled static dual-species Rydberg atom
wires [1], we develop an entirely new approach using Q-Pairs, which consist of
globally controlled and tem...
A Quantum Computer Based on Donor-Cluster Arrays in Silicon
Shihang Zhang, Chunhui Zhang, Guanyong Wang, Tao Xin, Guangchong Hu, Yu He, Peihao Huang • Published: 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...
Any type of spectroscopy can be efficiently simulated on a quantum computer
Liam P. Flew, Ivan Kassal • Published: 2025-10-03
Spectroscopy is the most important method for probing the structure of
molecules. However, predicting molecular spectra on classical computers is
computationally expensive, with the most accurate methods having a cost that
grows exponentially with molecule size. Quantum computers have been shown to
simulate simple types of optical spectroscopy efficiently -- with a cost
polynomial in molecule size...
Reproducible Builds for Quantum Computing
Iyán Méndez Veiga, Esther Hänggi • Published: 2025-10-02
Reproducible builds are a set of software development practices that
establish an independently verifiable path from source code to binary
artifacts, helping to detect and mitigate certain classes of supply chain
attacks. Although quantum computing is a rapidly evolving field of research, it
can already benefit from adopting reproducible builds. This paper aims to
bridge the gap between the quantu...
Hamiltonian simulation-based quantum-selected configuration interaction for large-scale electronic structure calculations with a quantum computer
Kenji Sugisaki, Shu Kanno, Toshinari Itoko, Rei Sakuma, Naoki Yamamoto • Published: 2024-12-10
Quantum-selected configuration interaction (QSCI) is an approach for quantum
chemical calculations using current quantum computers. In conventional QSCI,
Slater determinants used for the wave function expansion are sampled by
iteratively performing approximate wave function preparation and subsequent
measurement in the computational basis, and then the subspace Hamiltonian
matrix is diagonalized o...
Revisiting Noise-adaptive Transpilation in Quantum Computing: How Much Impact Does it Have?
Yuqian Huo, Jinbiao Wei, Christopher Kverne, Mayur Akewar, Janki Bhimani, Tirthak Patel • Published: 2025-07-01
Transpilation, particularly noise-aware optimization, is widely regarded as
essential for maximizing the performance of quantum circuits on superconducting
quantum computers. The common wisdom is that each circuit should be transpiled
using up-to-date noise calibration data to optimize fidelity. In this work, we
revisit the necessity of frequent noise-adaptive transpilation, conducting an
in-depth...
Photonic Hybrid Quantum Computing
Jaehak Lee, Srikrishna Omkar, Yong Siah Teo, Seok-Hyung Lee, Hyukjoon Kwon, M. S. Kim, Hyunseok Jeong • Published: 2025-10-01
Photons are a ubiquitous carrier of quantum information: they are fast,
suffer minimal decoherence, and do not require huge cryogenic facilities.
Nevertheless, their intrinsically weak photon-photon interactions remain a key
obstacle to scalable quantum computing. This review surveys hybrid photonic
quantum computing, which exploits multiple photonic degrees of freedom to
combine the complementary...
Exploiting Translational Symmetry for Quantum Computing with Squeezed Cat Qubits
Tomohiro Shitara, Gabriel Mintzer, Yuuki Tokunaga, Suguru Endo • Published: 2025-10-01
Squeezed cat quantum error correction (QEC) codes have garnered attention
because of their robustness against photon-loss and excitation errors while
maintaining the biased-noise property of cat codes. In this work, we reveal the
utility of the unexplored translational symmetry of the squeezed cat codes,
with applications to autonomous QEC, reliable logical operations, and readout
in a non-orthogo...
Estimating quantum relative entropies on quantum computers
Yuchen Lu, Kun Fang • Published: 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,...
🏢 Company Papers
−Abstain and Validate: A Dual-LLM Policy for Reducing Noise in Agentic Program Repair
José Cambronero, Michele Tufano, Sherry Shi, Renyao Wei, Grant Uy, Runxiang Cheng, Chin-Jung Liu, Shiying Pan, Satish Chandra, Pat Rondon • Published: 2025-10-03
Agentic Automated Program Repair (APR) is increasingly tackling complex,
repository-level bugs in industry, but ultimately agent-generated patches still
need to be reviewed by a human before committing them to ensure they address
the bug. Showing unlikely patches to developers can lead to substantial noise,
wasting valuable developer time and eroding trust in automated code changes. We
introduce t...
Putnam-like dataset summary: LLMs as mathematical competition contestants
Bartosz Bieganowski, Daniel Strzelecki, Robert Skiba, Mateusz Topolewski • Published: 2025-09-29
In this paper we summarize the results of the Putnam-like benchmark published
by Google DeepMind. This dataset consists of 96 original problems in the spirit
of the Putnam Competition and 576 solutions of LLMs. We analyse the performance
of models on this set of problems to verify their ability to solve problems
from mathematical contests.
Spatial uniformity of g-tensor and spin-orbit interaction in germanium hole spin qubits
Inga Seidler, Bence Hetényi, Lisa Sommer, Leonardo Massai, Konstantinos Tsoukalas, Eoin G. Kelly, Alexei Orekhov, Michele Aldeghi, Stephen W. Bedell, Stephan Paredes, Felix J. Schupp, Matthias Mergenthaler, Gian Salis, Andreas Fuhrer, Patrick Harvey-Collard • Published: 2025-10-03
Holes in Ge/SiGe heterostructures are now a leading platform for
semiconductor spin qubits, thanks to the high confinement quality,
two-dimensional arrays, high tunability, and larger gate structure dimensions.
One limiting factor for the operation of large arrays of qubits is the
considerable variation in qubit frequencies or properties resulting from the
strongly anisotropic $g$-tensor. We study...
Bounds on Atomistic Disorder for Scalable Electron Shuttling
Raphaël J. Prentki, Pericles Philippopoulos, Mohammad Reza Mostaan, Félix Beaudoin • Published: 2025-10-03
Electron shuttling is emerging as a key enabler of scalable silicon
spin-qubit quantum computing, but fidelities are limited by atomistic disorder.
We introduce a multiscale simulation framework combining time-dependent
finite-element electrostatics and atomistic tight-binding to capture the impact
of random alloying and interface roughness on the valley splitting and phase of
shuttled electrons. ...
Polarization dependence of spin-electric transitions in molecular exchange qubits
Filippo Troiani, Athanassios K. Boudalis • Published: 2025-10-03
Quasi-optical experiments are emerging as a powerful technique to probe
magnetic transitions in molecular spin systems. However, the simultaneous
presence of the electric- and magnetic-dipole induced transitions poses the
challenge of discriminating between these two contributions. Besides, the
identification of the spin-electric transitions can hardly rely on the peak
intensity, because of the cu...
SUperman: Efficient Permanent Computation on GPUs
Deniz Elbek, Fatih Taşyaran, Bora Uçar, Kamer Kaya • Published: 2025-02-23
The permanent is a function, defined for a square matrix, with applications
in various domains including quantum computing, statistical physics, complexity
theory, combinatorics, and graph theory. Its formula is similar to that of the
determinant; however, unlike the determinant, its exact computation is
#P-complete, i.e., there is no algorithm to compute the permanent in polynomial
time unless P=...
Scalable Quantum Optimisation using HADOF: Hamiltonian Auto-Decomposition Optimisation Framework
Namasi G Sankar, Georgios Miliotis, Simon Caton • Published: 2025-10-03
Quantum Annealing (QA) and QAOA are promising quantum optimisation algorithms
used for finding approximate solutions to combinatorial problems on near-term
NISQ systems. Many NP-hard problems can be reformulated as Quadratic
Unconstrained Binary Optimisation (QUBO), which maps naturally onto quantum
Hamiltonians. However, the limited qubit counts of current NISQ devices
restrict practical deployme...
A Quantum Computer Based on Donor-Cluster Arrays in Silicon
Shihang Zhang, Chunhui Zhang, Guanyong Wang, Tao Xin, Guangchong Hu, Yu He, Peihao Huang • Published: 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...
📚 Highlighted Papers
−Quantum enhanced Monte Carlo simulation for photon interaction cross sections
Authors: Euimin Lee, Sangmin Lee, Shiho Kim • Submitted: Submitted • arXiv: arXiv:2502.14374
Abstract: â¦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 Sevior • Submitted: Submitted • arXiv: arXiv:2502.14225
Abstract: â¦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. Geller • Submitted: Submitted • arXiv: arXiv:2502.13910
Abstract: â¦-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...