Divergence of $\langle p^6\rangle$ in discontinuous potential wells

التفاصيل البيبلوغرافية
العنوان: Divergence of $\langle p^6\rangle$ in discontinuous potential wells
المؤلفون: Ahmed, Zafar, Kumar, Sachin, Ghosh, Dona, Nathan, Joseph Amal
المصدر: Eur. J. Phys. 41 (2020) 019401
سنة النشر: 2018
المجموعة: Quantum Physics
مصطلحات موضوعية: Quantum Physics
الوصف: The surprising divergence of the expectation value $<\!p^6\!>$ for the square well potential is known. Here, we prove and demonstrate the divergence of $<\!p^6\!>$ in potential wells which have a finite jump discontinuity; apart from the square-well two-piece half-potentials wells are examples. These half-potential wells can be expressed as $V(x)=-U(x) \Theta(x)$, where $\Theta(x)$ is the Heaviside step function. $U(x)$ are continuous and differentiable functions with minimum at $x=0$ and which may or not vanish as $x\sim \infty$.
Comment: Five figures and 5 pages
نوع الوثيقة: Working Paper
DOI: 10.1088/1361-6404/aac988
URL الوصول: http://arxiv.org/abs/1803.01597
رقم الأكسشن: edsarx.1803.01597
قاعدة البيانات: arXiv
الوصف
DOI:10.1088/1361-6404/aac988