Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Approximate level-by-level maximum-likelihood decoding based on the Chase algorithm for high-rate concatenated stabilizer codes
Takeshi Kakizaki·Jan 26, 2026
Fault-tolerant quantum computation (FTQC) is expected to address a wide range of computational problems. To realize large-scale FTQC, it is essential to encode logical qubits using quantum error-correcting codes. High-rate concatenated codes have rec...
Analyzing Images of Blood Cells with Quantum Machine Learning Methods: Equilibrium Propagation and Variational Quantum Circuits to Detect Acute Myeloid Leukemia
A. Bano, L. Liebovitch·Jan 26, 2026
This paper presents a feasibility study demonstrating that quantum machine learning (QML) algorithms achieve competitive performance on real-world medical imaging despite operating under severe constraints. We evaluate Equilibrium Propagation (EP), a...
Data-Driven Qubit Characterization and Optimal Control using Deep Learning
Paul Surrey, Julian D. Teske, Tobias Hangleiter +2 more·Jan 26, 2026
Quantum computing requires the optimization of control pulses to achieve high-fidelity quantum gates. We propose a machine learning-based protocol to address the challenges of evaluating gradients and modeling complex system dynamics. By training a r...
Bayesian Optimization for Quantum Error-Correcting Code Discovery
Yihua Chengyu, Richard Meister, Conor Carty +2 more·Jan 26, 2026
Quantum error-correcting codes protect fragile quantum information by encoding it redundantly, but identifying codes that perform well in practice with minimal overhead remains difficult due to the combinatorial search space and the high cost of logi...
The Quantum Cliff: A Critical Proton Tunneling Threshold Determines Clinical Severity in RPE65-Mediated Retinal Disease
Biraja Ghoshal, William Woof, Bhargab Ghoshal +1 more·Jan 26, 2026
Predicting clinical severity from genotype remains a fundamental challenge in molecular medicine, particularly for enzymes whose function depends on sub-atomic-scale geometry. Mutations in the \textit{RPE65} isomerohydrolase cause Leber Congenital Am...
Quantum Error Correction on Error-mitigated Physical Qubits
Minjun Jeon, Zhenyu Cai·Jan 26, 2026
We present a general framework for applying linear quantum error mitigation (QEM) techniques directly to physical qubits within a logical qubit to suppress logical errors. By exploiting the linearity of quantum error correction (QEC), we demonstrate ...
An Adaptive Purification Controller for Quantum Networks: Dynamic Protocol Selection and Multipartite Distillation
Pranav Kulkarni, Leo Sünkel, Michael Kölle·Jan 26, 2026
Efficient entanglement distribution is a cornerstone of the Quantum Internet. However, physical link parameters such as photon loss, memory coherence time, and gate error rates fluctuate dynamically, rendering static purification strategies suboptima...
Quantum Simulation of the Polaron-Molecule Transition on a NISQ Device
Hugo Catala, Ezequiel Valero, German Rodrigo·Jan 26, 2026
The simulation of strongly correlated fermionic systems remains one of the most significant challenges in computational physics due to the exponential growth of the Hilbert space and the fermionic sign problem. In this work, we present a digital quan...
Feedback-Based Quantum Control for Safe and Synergistic Drug Combination Design
Mai Nguyen Phuong Nhi, Lan Nguyen Tran, Le Bin Ho·Jan 26, 2026
Drug-drug interactions (DDIs) strongly affect the safety and efficacy of combination therapies. Despite the availability of large DDI databases, selecting optimal multi-drug combinations that balance safety, therapeutic benefit, and regimen size rema...
Overcoming Barren Plateaus in Variational Quantum Circuits using a Two-Step Least Squares Approach
Francis Boabang, Samuel Asante Gyamerah·Jan 26, 2026
Variational Quantum Algorithms are a vital part of quantum computing. It is a blend of quantum and classical methods for tackling tough problems in machine learning, chemistry, and combinatorial optimization. Yet as these algorithms scale up, they ca...
Bosonic Diffusive Channel: Quantum Metrology via Finite Non-Gaussian Resource
Arman, Prasanta K. Panigrahi·Jan 25, 2026
We investigate the estimation of dephasing-induced decoherence in continuous-variable quantum systems using non-Gaussian probe states. By purifying the open system, we identify optimal probes, specifically squeezed cat and symmetric squeezed compass ...
Simple, Efficient, and Generic Post-Selection Decoding for qLDPC codes
Haipeng Xie, Nobuyuki Yoshioka, Kento Tsubouchi +1 more·Jan 25, 2026
Quantum error correction is indispensable for scalable quantum computation. Although encoding logical qubits substantially enhances noise resilience, achieving logical error rates low enough for practical algorithms remains challenging on existing ha...
Quantum fast-forwarding fermion-boson interactions via the polaron transform
Harriet Apel, Burak Şahinoğlu·Jan 25, 2026
Simulating interactions between fermions and bosons is central to understanding correlated phenomena, yet these systems are inherently difficult to treat classically. Previous quantum algorithms for fermion-boson models exhibit computation costs that...
Quantum-Inspired Algorithms beyond Unitary Circuits: the Laplace Transform
Noufal Jaseem, Sergi Ramos-Calderer, Gauthameshwar S. +3 more·Jan 25, 2026
Quantum-inspired algorithms can deliver substantial speedups over classical state-of-the-art methods by executing quantum algorithms with tensor networks on conventional hardware. Unlike circuit models restricted to unitary gates, tensor networks nat...
Quantum reinforcement learning-based active flow control
Hongfu Zhang, Hui Tang·Jan 25, 2026
Active flow control remains a significant challenge due to the high-dimensional, nonlinear nature of fluid dynamics. Quantum machine learning may prove effective in addressing these issues, given that quantum computing possesses superiority over trad...
Autonomous phonon maser in levitated spin-mechanics
Mohamed Hatifi·Jan 24, 2026
Levitated nanodiamonds hosting a single nitrogen-vacancy (NV) center provide an ultra-low-frequency mechanical mode with widely tunable dissipation and spin backaction under microwave dressing and optical pumping. We demonstrate that the driven NV sp...
Quantum Phase Transitions in the Transverse-Field Ising Model: A Comparative Study of Exact, Variational, and Hardware-Based Approaches
Rudraksh Sharma·Jan 24, 2026
The quantum phase transitions provide a paradigm for studying collective quantum phenomena that are a result of competing non-commuting interactions. This paper will study the ground state properties and quantum critical dynamics of the one-dimension...
On the Impossibility of Simulation Security for Quantum Functional Encryption
Mohammed Barhoush, Arthur Mehta, Anne Müller +1 more·Jan 24, 2026
Functional encryption is a powerful cryptographic primitive that enables fine-grained access to encrypted data and underlies numerous applications. Although the ideal security notion for FE (simulation security) has been shown to be impossible in the...
Qhronology: A Python package for studying quantum models of closed timelike curves
Lachlan G. Bishop·Jan 24, 2026
Qhronology is a novel scientific-computing package for studying quantum models of closed timelike curves (CTCs) and simulating general quantum information processing and computation. Written in Python, the program provides a comprehensive framework f...
Non-Markovian Decoherence Times in Finite-Memory Environments
Ramandeep Dewan·Jan 24, 2026
Decoherence is often modeled using Markovian master equations that predict exponential suppression of coherence and are frequently used as effective bounds on quantum behavior in complex environments. Such descriptions, however, correspond to the sin...