Zobrazeno 1 - 10
of 1 012
pro vyhledávání: '"Lewis, Laura"'
Recent advances have demonstrated that $\mathcal{O}(\log M)$ measurements suffice to predict $M$ properties of arbitrarily large quantum many-body systems. However, these remarkable findings assume that the properties to be predicted are chosen indep
Externí odkaz:
http://arxiv.org/abs/2410.15501
Characterizing a quantum system by learning its state or evolution is a fundamental problem in quantum physics and learning theory with a myriad of applications. Recently, as a new approach to this problem, the task of agnostic state tomography was d
Externí odkaz:
http://arxiv.org/abs/2410.11957
Autor:
Wanner, Marc, Lewis, Laura, Bhattacharyya, Chiranjib, Dubhashi, Devdatt, Gheorghiu, Alexandru
A fundamental problem in quantum many-body physics is that of finding ground states of local Hamiltonians. A number of recent works gave provably efficient machine learning (ML) algorithms for learning ground states. Specifically, [Huang et al. Scien
Externí odkaz:
http://arxiv.org/abs/2405.18489
We describe an integrated modelling approach to accelerate the search for novel, single-phase, multicomponent materials with high magnetocrystalline anisotropy (MCA). For a given system we predict the nature of atomic ordering, its dependence on the
Externí odkaz:
http://arxiv.org/abs/2401.02809
Autor:
Zhao, Haimeng, Lewis, Laura, Kannan, Ishaan, Quek, Yihui, Huang, Hsin-Yuan, Caro, Matthias C.
Publikováno v:
PRX Quantum 5, 040306 (2024)
While quantum state tomography is notoriously hard, most states hold little interest to practically-minded tomographers. Given that states and unitaries appearing in Nature are of bounded gate complexity, it is natural to ask if efficient learning be
Externí odkaz:
http://arxiv.org/abs/2310.19882
We present a theory describing the single-ion anisotropy of rare earth (RE) magnets in the presence of point defects. Taking the RE-lean 1:12 magnet class as a prototype, we use first-principles calculations to show how the introduction of Ti substit
Externí odkaz:
http://arxiv.org/abs/2308.11303
Publikováno v:
J. Appl. Phys. 134, 163905 (2023)
The magnetocrystalline anisotropy energy of atomically ordered $\mathrm{L}1_0$ FeNi (the meteoritic mineral tetrataenite) is studied within a first-principles electronic structure framework. Two compositions are examined: equiatomic Fe$_{0.5}$Ni$_{0.
Externí odkaz:
http://arxiv.org/abs/2307.15470