دورية أكاديمية
Quantum-geometric perspective on spin-orbit-coupled Bose superfluids
| العنوان: | Quantum-geometric perspective on spin-orbit-coupled Bose superfluids |
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| المساهمون: | Işkın, Menderes (ORCID 0000-0003-0704-1318 & YÖK ID 29659) (ORCID 0000-0003-0704-1318 & YÖK ID 29659), Subaşı, A.L., College of Sciences, Department of Physics |
| المصدر: | Physical Review A |
| بيانات النشر: | American Physical Society (APS) International |
| سنة النشر: | 2022 |
| المجموعة: | Koç University Suna Kıraç Library’ Digital Collections |
| مصطلحات موضوعية: | Optics, Physics, atomic, molecular and chemical, Geometry, Quantum theory, Wave propagation |
| الوصف: | We employ the Bogoliubov approximation to study how the quantum geometry of the helicity states affects the superfluid properties of a spin-orbit-coupled Bose gas in continuum. In particular we derive the low-energy Bogoliubov spectrum for a plane-wave condensate in the lower helicity band and show that the geometric contributions to the sound velocity are distinguished by their linear dependences on the interaction strength; that is, they are in sharp contrast to the conventional contribution which has a square-root dependence. We also discuss the roton instability of the plane-wave condensate against the stripe phase and determine their phase-transition boundary. In addition we derive the superfluid density tensor by imposing a phase twist on the condensate order parameter and study the relative importance of its contribution from the interband processes that is related to the quantum geometry. ; Scientific and Technological Research Council of Turkey (TÜBİTAK) |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | |
| اللغة: | English |
| تدمد: | 2469-9926 2469-9934 |
| العلاقة: | Publisher version; Koç University Institutional Repository; Subasi, A L, and M Iskin. ""Quantum-geometric Perspective on Spin-Orbit-Coupled Bose Superfluids."" Physical Review a. 105.2 (2022).; https://dx.doi.org/10.1103/PhysRevA.105.023301Test; IR03593.pdf; WoS; Scopus; 1001-118F359; TÜBİTAK; http://libdigitalcollections.ku.edu.tr/cdm/ref/collection/IR/id/10453Test |
| DOI: | 10.1103/PhysRevA.105.023301 |
| الإتاحة: | https://doi.org/10.1103/PhysRevA.105.023301Test http://libdigitalcollections.ku.edu.tr/cdm/ref/collection/IR/id/10453Test |
| رقم الانضمام: | edsbas.9AFA3338 |
| قاعدة البيانات: | BASE |
| تدمد: | 24699926 24699934 |
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| DOI: | 10.1103/PhysRevA.105.023301 |