Physics Questions, Problems & Solutions : TransWikia.com ~ Page 225

Grounded/Earthed electric circuits

I have a problem here that involves a circuit that is grounded at the point shown at the bottom the circuit. The units marked with C are all capacitors and...

Asked on 06/30/2021 by O.kth

1 answer

Using perturbation theory or small oscillation approximation in Harmonic oscillator

Let us assume, we are given the following potential, $$V(x)=frac{1}{2}ax^2-2x+epsilon x^3$$ We need to find the energy levels of a particle bound in this potential Let us think of...

Asked on 06/29/2021 by Nakshatra Gangopadhay

0 answer

Reactions involving photovoltaic cell

I am trying to find a reaction that governs the mechanism of photovoltaic cell, that is, the chemical reaction. I already google it but couldn't find any font. I would...

Asked on 06/29/2021

1 answer

Is it really proper to say Ward identity is a consequence of gauge invariance?

Many (if not all) of the materials I've read claim Ward identity is a consequence of gauge invariance of the theory, while actually their derivations only make use of current...

Asked on 06/29/2021 by Jia Yiyang

3 answer

How to derive the Potts model as well as the gauge transformation directly from the principle of maximum entropy?

$newcommand{delim}[3]{left#1#3right#2}newcommand{delimzero}[3]{#1#3#2}newcommand{delimone}[3]{bigl#1#3bigr#2}newcommand{delimtwo}[3]{Bigl#1#3Bigr#2}newcommand{delimthree}[3]{biggl#1#3biggr#2}newcommand{delimfour}[3]{Biggl#1#3Biggr#2}$Suppose we have a random vector $s = delim(){s_1, dotsc, s_N}$ whose each component can be one of integers $delim{}{1,...

Asked on 06/29/2021

0 answer

How can I get an unitary operator acting on the composed system from an unitary operator that acts on a subspace of the composed system?

In $S[42]$ in the supplemental material of this paper Vacancy-like dressed states in topological waveguide QED, the author wanted to construct an unitary operator $widetilde{U}_S$...

Asked on 06/29/2021

1 answer

Difference between homogeneous and uniform?

Homogeneity means that something is the same in every point in space, whereas isotropic means that there is no directionality. Uniformity implies there is "no variation". But what is actually...

Asked on 06/29/2021 by Jhonny

5 answer

Are ionic crystals, band insulators?

Ionic crystals are considered as electrical insulators. Is there a proof that they are insulators from the point of view of electronic band theory? In other words, is there a...

Asked on 06/29/2021

0 answer

Proof of necessity of Band Inversion in Topological Insulators

Is there any rigorous proof/argument for the necessity of Band Inversion in topological insulators? From a mathematical point of view, I am trying to find an answer in terms of...

Asked on 06/29/2021 by ang_88

1 answer

What is the definition of equilibrium?

Assume that two bodies are rotating about their center of mass because of their mutual gravitational attraction between them. Can they be said to be in equilibrium?...

Asked on 06/29/2021 by Anish Mondal

1 answer

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