Results 11 to 20 of about 78 (74)

Ab initio artificial intelligence: Future research of Materials Genome Initiative

open access: yesMaterials Genome Engineering Advances, Volume 1, Issue 2, December 2023., 2023
As the field of materials discovery evolves, a shift from traditional trial‐and‐error methods to data‐driven and AI‐driven approaches is gradually taking precedence. This perspective introduces the emerging research field of ab initio AI, which utilizes AI techniques to improve ab initio computational methods.
He Li, Yong Xu, Wenhui Duan
wiley   +1 more source

An identity in the Bethe subalgebra of C[Sn]$\mathbb {C}[\mathfrak {S}_n]$

open access: yesProceedings of the London Mathematical Society, Volume 127, Issue 5, Page 1247-1267, November 2023., 2023
Abstract As part of the proof of the Bethe ansatz conjecture for the Gaudin model for gln$\mathfrak {gl}_n$, Mukhin, Tarasov, and Varchenko described a correspondence between inverse Wronskians of polynomials and eigenspaces of the Gaudin Hamiltonians. Notably, this correspondence afforded the first proof of the Shapiro–Shapiro conjecture.
Kevin Purbhoo
wiley   +1 more source

Harnessing the Quantum Behavior of Spins on Surfaces

open access: yesAdvanced Materials, Volume 35, Issue 27, July 6, 2023., 2023
By incorporating electron spin resonance capability in spin‐polarized scanning tunneling microscopy, quantum states of individual spins on surfaces can be initialized, controlled, and read out. Individual spins and artificial spin structures built atom‐by‐atom provide new platforms for sensing magnetic interactions, performing quantum operations, and ...
Yi Chen   +2 more
wiley   +1 more source

The subsystem quantum chemistry program Serenity

open access: yesWIREs Computational Molecular Science, Volume 13, Issue 3, May/June 2023., 2023
Exploiting the subsystem structure of molecules and molecular aggregates is at the heart of the SERENITY program. The new version of this code features highly efficient modules for coupled response properties of aggregates, but also projection‐based DLPNO‐CC‐in‐DFT embedding and several other features optimized for subsystem quantum chemistry ...
Niklas Niemeyer   +10 more
wiley   +1 more source

Spectral Determinant of the Two‐Photon Quantum Rabi Model

open access: yesAnnalen der Physik, Volume 535, Issue 3, March 2023., 2023
The determination of the exact spectrum of quantum systems with a single continuous degree of freedom is only possible in very few cases, because polynomial ansatz functions do not exist. Here it is demonstrated that the Bargmann Hilbert space allows the computation of the spectral determinant of the quantum Rabi model with non‐linear (two‐photon ...
Daniel Braak
wiley   +1 more source

Spin‐s$s$ U(1)$U(1)$‐Eigenstate Preparation

open access: yesAnnalen der Physik, Volume 538, Issue 7, July 2026.
A Gray code for bounded integer compositions, together with Gray gates (shown below), are used to prepare general U(1)‐eigenstates of a spin‐s chain. ABSTRACT We formulate a deterministic algorithm for preparing a general U(1)$U(1)$‐eigenstate of a spin‐s$s$ chain of length n$n$. These states consist of linear combinations of computational basis states
Nabi Zare Harofteh, Rafael I. Nepomechie
wiley   +1 more source

On the Replica Symmetric Solution in General Diluted Spin Glasses

open access: yesRandom Structures &Algorithms, Volume 66, Issue 4, July 2025.
ABSTRACT We present a unifying approach to studying the replica symmetric solution in general diluted spin glass models on random p$$ p $$‐uniform hypergraphs with sparsity parameter α$$ \alpha $$. Our result shows that there exist two key regimes in which the model exhibits replica symmetry and the free energy can be explicitly represented as the ...
Ratul Biswas, Wei‐Kuo Chen, Arnab Sen
wiley   +1 more source

Witnessing Entanglement and Quantum Correlations in Condensed Matter: A Review

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 3, March 2025.
Detection and certification of entanglement and quantum correlations in materials is of fundamental and far‐reaching importance for both basic science and identification of systems suitable for novel technologies. This review article comprehensively covers witnesses suitable to condensed matter, their derivations and experimental applications.
Pontus Laurell   +3 more
wiley   +1 more source

Spin‐s$s$ Dicke States and Their Preparation

open access: yesAdvanced Quantum Technologies, Volume 7, Issue 12, December 2024.
Dicke states are completely symmetric multi‐qubit states, which have many applications in quantum information and quantum computing. This work introduces higher‐spin generalizations of Dicke states, and formulates an efficient quantum circuit for preparing them on a quantum computer. The complete circuit diagram for the spin‐1 Dicke state |D2,2(1)⟩=16(|
Rafael I. Nepomechie   +2 more
wiley   +1 more source

Attainable bounds for algebraic connectivity and maximally connected regular graphs

open access: yesJournal of Graph Theory, Volume 107, Issue 3, Page 522-549, November 2024.
Abstract We derive attainable upper bounds on the algebraic connectivity (spectral gap) of a regular graph in terms of its diameter and girth. This bound agrees with the well‐known Alon–Boppana–Friedman bound for graphs of even diameter, but is an improvement for graphs of odd diameter. For the girth bound, we show that only Moore graphs can attain it,
Geoffrey Exoo   +3 more
wiley   +1 more source

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