Publications by authors named "I L Pop"

Josephson junction parametric amplifiers have become essential tools for microwave quantum circuit readout with minimal added noise. Even after improving at an impressive rate in the past decade, they remain vulnerable to magnetic fields, which limits their use in many applications such as spin qubits, Andreev and molecular magnet devices, dark matter searches, etc. Kinetic inductance materials, such as granular aluminum (grAl), offer an alternative source of nonlinearity with innate magnetic field resilience.

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Micronutrient deficiencies (MNDs) are commonly reported after bariatric and metabolic surgery, including laparoscopic sleeve gastrectomy (LSG). Nevertheless, the micronutrient status changes over time and the influence of sex or initial body mass index (BMI) on these changes are less explored. This study aims to investigate the changes in micronutrient levels at 6 and 12 months after LSG and the potential influence of sex or baseline BMI (≥40 kg/m) on these changes in patients submitted to LSG.

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: Pyoderma gangrenosum (PG) is a rare, autoimmune skin condition characterized by painful, rapidly progressing ulcers, often associated with autoimmune dysregulation. Managing PG following breast surgery presents unique challenges due to its pathergy phenomenon, which complicates surgical interventions. This article outlines the case of PG in a 48-year-old female post-breast surgery and reviews management strategies through a systematic analysis of the literature.

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Article Synopsis
  • Large-scale superconducting quantum processors face challenges due to the complex microscopic features in solid-state devices, primarily using aluminium oxide (AlO) tunnel Josephson junctions for nonlinearity in quantum operations.
  • Traditional analyses often rely on an ideal sinusoidal current-phase relation, which only applies in very low-transparency conditions, but new findings reveal this doesn’t accurately represent the energy spectra of transmon artificial atoms.
  • A mesoscopic model shows significant contributions from higher Josephson harmonics, improving predictions of energy spectra and suggesting that engineered harmonics could minimize charge-related errors in transmon qubits, enhancing their performance for quantum technologies.
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