The KCQ consists of the degenerate ground state manifold of the Hamiltonian
$${H}_{{{{\rm{KCQ}}}}}/\hslash=-K{a}^{{{\dagger}} 2}{a}^{2}+{\epsilon }_{2}{a}^{{{\dagger}} 2}+{\epsilon }_{2}^{*}{a}^{2},$$
(1)
where…
Category: 4. Physics
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Inconsistency of AI in intracranial aneurysm detection with varying dose and image reconstruction
Scanner-related changes in data quality are common in medical imaging, yet monitoring their impact on diagnostic AI performance remains challenging. In this study, we performed standardized consistency testing of a commercial AI solution for…
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Ballistic diffusion fronts in biomolecular condensates
Materials
ssDNA was purchased from Biomers and Integrated DNA Technologies. PNA was purchased from PANAGENE. Supplementary Data 2 summarizes all the sequences. T4 DNA ligase (2 U μl–1), exonuclease I (40 U μl–1), exonuclease III…
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Research and simulation analysis of Jack based dental treatment chair human–machine system
Improvement of dental treatment chair ergonomics
Based on the simulation results of patient behavior and posture during dental treatment, combined with the comfort analysis of dental patients’ lying and spitting positions, improvements were made…
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A committor-based method to uniformly sample rare reactive events
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Trizio, E. et al. Everything everywhere all at once: a probability-based enhanced…
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Error crafting in mixed quantum gate synthesis
Unitary, mixed, and error-crafted synthesis
We aim to implement a target single-qubit unitary \(\hat{U}\) with its channel representation given by \(\hat{{\mathcal{U}}}\). We hereafter distinguish the unitaries before and after synthesis by the…
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The positron arm of a plasma-based linear collider
Wilson, E. & Sessler, A. Engines Of Discovery: A Century Of Particle Accelerators (Revised And Expanded Edition) (World Scientific, 2014).
Barish, B., Walker, N. & Yamamoto, H. Building the next-generation collider. Sci. Am. 298, 54–59 (2008).
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Non-Hermitian non-Abelian topological transition in the S = 1 electron spin system of a nitrogen vacancy centre in diamond
Aharonov, Y. & Bohm, D. Significance of electromagnetic potentials in the quantum theory. Phys. Rev. 115, 485–491 (1959).
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Klitzing, K. V., Dorda, G. & Pepper, M. New method for…
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High-Chern-number Quantum anomalous Hall insulators in mixing-stacked MnBi2Te4 thin films
First-principles calculations
Bulk MBT crystalline in the \(R\bar{3}m\) structure, which is characterized by the ABC-stacked building blocks in the Te-Bi-Te-Mn-Te-Bi-Te sequence19,22,23,24,25. Interlayer sliding can be realized in MBT thin films…
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Anomalous skyrmion drag in magnetic multilayers
Model and simulations of skyrmion drag
Figure 1a illustrates our theoretical model, which consists of three ferromagnetic layers (labeled by L1–L3) sandwiched separately between heavy metals A and B, whose distinct properties introduce not only…
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