Academic Journal

Time-Rescaling of Dirac Dynamics: Shortcuts to Adiabaticity in Ion Traps and Weyl Semimetals

التفاصيل البيبلوغرافية
العنوان: Time-Rescaling of Dirac Dynamics: Shortcuts to Adiabaticity in Ion Traps and Weyl Semimetals
المؤلفون: Agniva Roychowdhury, Sebastian Deffner
المصدر: Entropy; Volume 23; Issue 1; Pages: 81
بيانات النشر: Multidisciplinary Digital Publishing Institute
سنة النشر: 2021
المجموعة: MDPI Open Access Publishing
مصطلحات موضوعية: shortcuts to adiabaticity, quantum control, Dirac dynamics, ion traps, Weyl semimetals
الوصف: Only very recently, rescaling time has been recognized as a way to achieve adiabatic dynamics in fast processes. The advantage of time-rescaling over other shortcuts to adiabaticity is that it does not depend on the eigenspectrum and eigenstates of the Hamiltonian. However, time-rescaling requires that the original dynamics are adiabatic, and in the rescaled time frame, the Hamiltonian exhibits non-trivial time-dependence. In this work, we show how time-rescaling can be applied to Dirac dynamics, and we show that all time-dependence can be absorbed into the effective potentials through a judiciously chosen unitary transformation. This is demonstrated for two experimentally relevant scenarios, namely for ion traps and adiabatic creation of Weyl points.
نوع الوثيقة: text
وصف الملف: application/pdf
اللغة: English
Relation: Thermodynamics; https://dx.doi.org/10.3390/e23010081
DOI: 10.3390/e23010081
الاتاحة: https://doi.org/10.3390/e23010081
Rights: https://creativecommons.org/licenses/by/4.0/
رقم الانضمام: edsbas.140E4368
قاعدة البيانات: BASE