Papers

Alessandro Coppo, Nicola Pranzini, Paola Verrucchi·Jan 12, 2026

We consider a stationary quantum system consisting of two non-interacting yet entangled subsystems, $Ξ$ and $Γ$. We identify a quantum theory characterizing $Ξ$ such that, in the quantum-to-classical crossover of the composite system, $Γ$ behaves as ...

Jing-Tao Qiu, D. M. Tong, Xiao-Dong Yu·Jan 12, 2026

Quantum networks form the backbone of long-distance quantum information processing. Genuine multipartite entanglement (GME) serves as a key indicator of network performance and overall state quality. However, the widely used methods for certifying GM...

Victoria Motsch, Nikolai Bolik, Sandro Wimberger·Jan 12, 2026

We study the on-resonance Spin-1/2 Double Kicked Rotor, a periodically driven quantum system that hosts topological phases. Motivated by experimental constraints, we analyze the effects of open and periodic boundary conditions in contrast to the idea...

Yu-Hao Chen, Renata Wong·Jan 12, 2026

This work provides a quantum-computing-first derivation of the Unitary Coupled Cluster ansatz, showing that its structure emerges naturally from fermionic algebra under unitary constraints. By explicitly connecting second quantization, Jordan-Wigner ...

Siddhant Singh, Rikiya Kashiwagi, Kazufumi Tanji +4 more·Jan 12, 2026

Fault-tolerant modular quantum computing requires stabilizer measurements across the modules in a quantum network. For this, entangled states of high quality and rate must be distributed. Currently, two main types of entanglement distribution protoco...

Mohammad Rowshan·Jan 12, 2026

We study directionally informed belief propagation (BP) decoding for quantum CSS codes, where anisotropic Tanner-graph structure and biased noise concentrate degeneracy along preferred directions. We formalize this by placing orientation weights on T...

Sahel Ashhab, Mohammad Ayyash·Jan 12, 2026

In our paper [1], our numerical simulations showed that, unlike displacement and conventional squeezing, higher-order squeezing exhibits oscillatory dynamics. Subsequently, Gordillo and Puebla pointed out that simulation results depend on whether the...

Eromanga Adermann, Haiyue Kang, Martin Sevior +1 more·Jan 12, 2026

At the intersection of quantum computing and machine learning, quantum machine learning (QML) is poised to revolutionize artificial intelligence. However, the vulnerability of the current generation of quantum computers to noise and computational err...

Angshul Majumdar·Jan 12, 2026

Dictionary learning (DL) is a core tool in signal processing and machine learning for discovering sparse representations of data. In contrast with classical successes, there is currently no practical quantum dictionary learning algorithm. We argue th...

Yan Xie, Junjie Liu·Jan 12, 2026

Quantum thermometry aims to measure temperature in nanoscale quantum systems, paralleling classical thermometry. However, temperature is not a quantum observable, and most theoretical studies have therefore concentrated on analyzing fundamental preci...

Haorong Wu, Xilong Fan·Jan 12, 2026

We propose the gravitational analog of the chiroptical effect for the first time, demonstrating that gravitational waves (GWs) can induce a reversal of photon chirality through the exchange of angular momentum, namely the spin-2-gravitation chiroptic...

Mehran Moghadam, Sercan Aygun, M. Hassan Najafi·Jan 12, 2026

The hardware-friendly implementation of transcendental functions remains a longstanding challenge in design automation. These functions, which cannot be expressed as finite combinations of algebraic operations, pose significant complexity in digital ...

Qianlong Wang, Sven Ahrens, Baifei Shen·Jan 12, 2026

Negative states are an intrinsic property of relativistic quantum theory and related to anti-particles in the context of the Dirac sea concept. We show that negative states can dominantly contribute to the diffraction amplitude in the quantum dynamic...

Abdikarim Mohamed Ibrahim, Rosdiadee Nordin·Jan 12, 2026

LoRaWAN deployments rely on rough range estimates or simplified propagation models to decide where to place/mount gateways. As a result, operators have limited visibility into how rooftop choice, streets, and building shadowing jointly affect coverag...

Abdikarim Mohamed Ibrahim, Rosdiadee Nordin·Jan 12, 2026

High-frequency deployments in dense cities are difficult to plan because coverage, interference, and service reliability depend sensitively on local morphology. This paper develops a geometric Digital Twin (DT) of the Sunway City and uses it to study...

Sami Abdul Sater, Harold Ollivier·Jan 12, 2026

As quantum computing machines move towards the utility regime, it is essential that users are able to verify their delegated quantum computations with security guarantees that are (i) robust to noise (ii) composable with other secure protocols and (i...

Indrajit Sen, Matthew Leifer·Jan 12, 2026

We explore the experimental predictions of the local scale invariant, non-Hermitian pilot-wave (de Broglie-Bohm) formulation of quantum theory introduced in arXiv:2601.03567. We use Weyl's definition of gravitational radius of charge to obtain the fi...

Pavel Velek, Tomáš Rabas, Jirí Bucek·Jan 12, 2026

The Hamming Quasi-Cyclic (HQC) cryptosystem was selected for standardization in the fourth round of the NIST Post-Quantum Cryptography (PQC) standardization project. The goal of the PQC project is to standardize one or more quantum-resistant public-k...

Mateusz Raczy'nski, Amadeusz Dydnia'nski, K. E. Polczy'nska +8 more·Jan 12, 2026

Coherence transfer is a multi-disciplinary topic of interest, including chemistry, biology and physics. In quantum technologies, achieving non-local coherent coupling between solid-state qubits is of the utmost importance. Here, we demonstrate that e...

Ratun Rahman, Shaba Shaon, Dinh C. Nguyen·Jan 11, 2026

Quantum federated learning (QFL) emerges as a powerful technique that combines quantum computing with federated learning to efficiently process complex data across distributed quantum devices while ensuring data privacy in quantum networks. Despite r...