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Unveiling hidden scaling relations in dissipative relaxation dynamics of strongly correlated quantum impurity systems.
J Chem Phys
November 2024
Hefei National Research Center for Physical Sciences at the Microscale and IChEM, University of Science and Technology of China, Hefei, Anhui 230026, China.
Understanding the time evolution of strongly correlated open quantum systems (OQSs) in response to perturbations (quenches) is of fundamental importance to the precise control of quantum devices. It is, however, rather challenging in multi-impurity quantum systems because such evolution often involves multiple intricate dynamical processes. In this work, we apply the numerically exact hierarchical equations of motion approach to explore the influence of two different types of perturbations, i.
View Article and Find Full Text PDFNonequilibrium steady state full counting statistics in the noncrossing approximation.
J Chem Phys
October 2024
The Raymond and Beverley Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel.
Quantum transport is often characterized not just by mean observables like the particle or energy current but by their fluctuations and higher moments, which can act as detailed probes of the physical mechanisms at play. However, relatively few theoretical methods are able to access the full counting statistics (FCS) of transport processes through electronic junctions in strongly correlated regimes. While most experiments are concerned with steady state properties, most accurate theoretical methods rely on computationally expensive propagation from a tractable initial state.
View Article and Find Full Text PDFMolecular Pairing in Twisted Bilayer Graphene Superconductivity.
Phys Rev Lett
October 2024
International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.
We propose a theory for how the weak phonon-mediated interaction (J_{A}=1-4 meV) wins over the prohibitive Coulomb repulsion (U=30-60 meV) and leads to a superconductor in magic-angle twisted bilayer graphene (MATBG). We find the pairing mechanism akin to that in the A_{3}C_{60} family of molecular superconductors: Each AA stacking region of MATBG resembles a C_{60} molecule, in that optical phonons can dynamically lift the degeneracy of the moiré orbitals, in analogy to the dynamical Jahn-Teller effect. Such induced J_{A} has the form of an intervalley anti-Hund's coupling and is less suppressed than U by the Kondo screening near a Mott insulator.
View Article and Find Full Text PDFComparison of global nursing education and necessary supports for nurse educators between Japan and four English-speaking countries: An international cross-sectional study.
Nurse Educ Pract
August 2024
International Nursing Development, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo 113-8519, Japan. Electronic address:
Aim: This study aimed to compare characteristics of nurse educators, factors related to teaching global nursing, contents of global education and support and the level of burden of global education and factors related to the burden between nurse educators among top nursing universities in Japan and four English-speaking countries.
Background: Intercultural sensitivity is the active desire to motivate oneself to understand, appreciate and accept different cultures. Nurse educators need to be culturally sensitive to teach cultural care to nursing students.
Severe Thrombocytopenia Secondary to Systemic Lupus Erythematosus With Antiphospholipid Antibodies in a Middle-Aged Woman.
Cureus
June 2024
Rheumatology and Clinical Immunology, Sapporo City General Hospital, Sapporo, JPN.
Thrombocytopenia is a common hematological complication of systemic lupus erythematosus (SLE). However, severe thrombocytopenia is a relatively rare presentation, accounting for only 3-10% of cases. A 52-year-old woman was being treated with 4 mg/day of prednisolone for 12 years for SLE-induced autoimmune hemolytic anemia.
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