Papers

S. Adarsh, P. N. Bala Subramanian, Sreeraj T. P·Mar 27, 2026

Simultaneous decoherence of conjugate observables of an open quantum system leads to a classical statistical mechanical description with constant phase space probability density in terms of a uniform ensemble. We investigate a scenario where this may...

Shu Hamanaka·Mar 27, 2026

The non-Hermitian skin effect is an anomalous localization phenomenon induced by nonreciprocal dissipation and has attracted considerable attention in recent years both theoretically and experimentally. In this article, we review the multifractal asp...

Zimu Li, Yuguo Shao, Fuchuan Wei +2 more·Mar 26, 2026

With recent breakthroughs in the construction of good qLDPC codes and nearly good qLTCs, the study of (co)homological invariants of quantum code complexes, which fundamentally underlie their logical operations, has become evidently important. In this...

Zhen Huang, Zhiyan Ding, Ke Wang +3 more·Mar 26, 2026

Gaussian baths are widely used to model non-Markovian environments, yet the cost of accurate simulation at long times remains poorly understood, especially when spectral densities exhibit nonanalytic behavior as in a range of realistic models. We rig...

Beixiong Zheng, Qingjie Wu, Xue Xiong +10 more·Mar 26, 2026

Non-fixed flexible antenna architectures, such as fluid antenna system (FAS), movable antenna (MA), and pinching antenna, have garnered significant interest in recent years. Among them, rotatable antenna (RA) has emerged as a promising technology for...

Pierre-Luc Dallaire-Demers, BTQ Technologies Team·Mar 26, 2026

Bitcoin already faces a quantum threat through Shor attacks on elliptic-curve signatures. This paper isolates the other component that public discussion often conflates with it: mining. Grover's algorithm halves the exponent of brute-force search, pr...

Dragomir Davidovic·Mar 26, 2026

Time-local generators of open quantum systems are generically divergent at long times, even though the reduced dynamics remains regular. We construct, by analytic continuation, nonperturbative dynamical maps consistent with these generators. For the ...

Huimin Wang, Yanxin Liu, Zhihao Xu +1 more·Mar 26, 2026

Point-gap topology under periodic boundary conditions and line-gap topology under open boundary conditions are generally inequivalent in non-Hermitian systems. We show that, in chiral non-Hermitian lattices, these two boundary-sensitive topological t...

Chiara Paletta, Tomaž Prosen·Mar 26, 2026

We study quantum and stochastic deformations of the rule-54 reversible cellular automaton (RCA54) on a 1+1-dimensional spatiotemporal lattice, focusing on their integrability structures in two distinct settings. First, for the quantum deformation, wh...

Rui Li, Xing Zhang, Qiming Sun +3 more·Mar 25, 2026

We introduce a GPU-accelerated multigrid Gaussian-Plane-Wave density fitting (FFTDF) approach for efficient Fock builds and nuclear gradient evaluations within Kohn-Sham density functional theory, as implemented in the GPU4PySCF module of PySCF. Our ...

Dipendu Halder, Srijata Lahiri, Saurabh Basu·Mar 25, 2026

Non-Hermitian skin effect, which is a unique feature of non-Hermitian systems, exhibits the formation of an extensive number of boundary modes under open boundary conditions. However, its manifestation in higher dimensions remains elusive. In our wor...

Emilio Pisanty, Nicola Mayer, Andrés Ordóñez +2 more·Mar 25, 2026

We develop a family of chiral measures to quantify the chirality of a distribution and assign it a handedness. Our measures are built using the tensorial moments of the distribution, which naturally encode its spatial character, not only via its angu...

Navya Gupta, Emil Mathew, Saurabh V. Kadam +5 more·Mar 25, 2026

String breaking is at the core of hadronization models of relevance to particle colliders. Yet, studies of string-breaking dynamics rooted in quantum chromodynamics remain fundamentally challenging. Tensor networks enable sign-problem-free studies of...

Abhijat Sarma, Cenke Xu·Mar 25, 2026

Under decoherence, an initial Gaussian (free-fermion) state evolves into a non-Gaussian mixed state, so the resulting decohered fermionic state is not exactly solvable in general. We show through an inequality that a class of Rényi-2 correlators of t...

Vasilis Belis, Joseph Bowles, Rishabh Gupta +2 more·Mar 25, 2026

This article presents an argument for why quantum computers could unlock new methods for machine learning. We argue that spectral methods, in particular those that learn, regularise, or otherwise manipulate the Fourier spectrum of a machine learning ...

Eric R. Bittner·Mar 25, 2026

Classical thermodynamics admits a geometric formulation in which work is associated with areas enclosed by cycles in state space. Whether an analogous structure persists in driven, dissipative quantum systems remains an open question. Here we show th...

Uddhav Sen, Federico Carollo, Sascha Wald·Mar 25, 2026

Quantum devices featuring mid-circuit measurement and reset capabilities, such as quantum computers and dual-species Rydberg quantum simulators, enable the realization of quantum cellular automata. These systems evolve in discrete time following loca...

Francesco Ferdinando Summa, Sonia Coriani, Andre Severo Pereira Gomes·Mar 25, 2026

This work presents the computation of nuclear magnetic shielding and magnetizability tensors for paramagnetic molecules, using a magnetically induced current density framework to account for orbital and spin contributions. We demonstrate that the met...

Alexander Holden, Moinul Hossain Rahat, Nii Osae Osae Dade·Mar 25, 2026

The ground state search problem is central to quantum computing, with applications spanning quantum chemistry, condensed matter physics, and optimization. The Variational Quantum Eigensolver (VQE) has shown promise for small systems but faces signifi...

Zhenyue Qin, Younjoon Chung, Elijah Lee +16 more·Mar 25, 2026

Vision impairment affects millions globally, and early detection is critical to preventing irreversible vision loss. Ophthalmology workflows require clinicians to integrate medical images, structured clinical data, and free-text notes to determine di...