FZU - Institute of Physics of the Czech Academy of Sciences

Tensor-network analysis of root patterns in the XXX model with open boundaries

The string hypothesis of Bethe roots is a cornerstone in the thermodynamic analysis of quantum integrable systems, since it connects root configurations with physical quantities such as the ground-state energy, surface energy and excitation spectra. For integrable models with U(1...

Reconfigurable phase in manganese nitride thin films by nitrogen stoichiometry

Transition-metal nitrides exhibit excellent electrical conductivity, chemical stability, and diverse physical properties, making them promising for GaN-based semiconductors, quantum bits, and spintronic applications. However, precise and reversible control of nitrogen stoichiomet...

Neural network–augmented Pfaffian wave-functions for scalable simulations of interacting fermions

Developing accurate numerical methods for strongly interacting fermions is crucial for improving our understanding of various quantum many-body phenomena, especially unconventional superconductivity. Recently, neural quantum states have emerged as a promising approach for studyin...

Beyond Charge: Field‐Effect Transistors in Multimodal Biosensing Platforms for Biomolecular Interaction Studies

ABSTRACT Field‐effect transistors (FETs) have long been recognized as highly promising platforms for label‐free and real‐time biosensing, offering a route toward compact, low‐cost, and portable devices. Despite their earlier development compared to other transducer technologies l...

Contrastive Learning Network based on Multi-Scale Transformer (CLMT-net): EEG decoding for fine-grained motor imagery of movements within the same limb

Motor imagery (MI)-based brain-computer interfaces (BCIs) decode EEG signals into control commands. However, fine-grained MI decoding within the same limb remains challenging due to highly similar neural patterns. This paper proposes a Contrastive Learning Network based on a Mult...

The Search for Life Elsewhere: Avoiding Hype and Fostering Public Understanding

The search for life beyond Earth presents unique challenges for science communication due to its interdisciplinary nature, the potential for groundbreaking discoveries, and the inherent uncertainties involved. The Lorentz Center workshop Breaking News: We Found Extraterrestrial L...

A winding number analysis of Schwarzschild black hole stability in light of Planck-scale modified kinematics

Abstract Determining whether Planck-scale effects can stabilize black holes addresses fundamental questions about black hole evaporation and quantum gravity consistency. Here, we analyze the thermodynamic topology ofSchwarzschild black holes under Planck-scale modified kinematics...

Detailed study of non-equilibrium characteristics of quasi-neutral TNSA plasmas

In an experiment performed in November 2022 at the petawatt (PW) laser facility at Vega III located in Salamanca-Spain, we have studied the successful production of several radioisotopes using protons accelerated by the Target Normal Sheath Acceleration (TNSA) mechanism (Rodrigue...

Alternating-chiral charge density waves and associated spin polarization in monolayered NbTe2

Intertwining of different quantum degrees of freedom manifests exotic quantum phenomena in many-body systems, especially in reduced dimensionality. Here we show that monolayered NbTe2 serves as a promising platform where lattice, charge, and spin degrees of freedom manifest coope...