Hello, this is Saurish Chakrabarty. I am a physicist and teach at Acharya Prafulla Chandra College. Welcome to my webpage. Below are links to some of my recent posts. Some information about me and my teaching and research interests can be found in the links below the header.
Distinction between Solids and Fluids When we interact with a solid (apply a force on it), it bends (deforms/changes shape) – the amount of deformation depends on the force. When we apply a force on a fluid, it flows – its deformation increases with time. Definition A fluid is a material in which small (suitably chosen) forces can change the re... Read more 25 Aug 2023 - 5 minute read
Syllabus Basic physics of fluids the continuum hypothesis concept of fluid element or fluid parcel definition of a fluid shear stress Fluid properties viscosity thermal conductivity mass diffusivity other fluid properties equation of state Flow phenomena ... Read more 24 Aug 2023 - less than 1 minute read
The most common system of many fermions is a metal. A metal can be thought of as a gas of electrons and following Sommerfeld’s approach, we will discuss some of the properties of an electron gas. We will focus on the non-interacting Fermi gas, commonly known as the ideal Fermi gas. The value of the chemical potential at $T=0$ is known as the ... Read more 09 Jun 2023 - 2 minute read
A function of a complex variable $f(z)$ is an ordered pair of two real functions, $u(x,y)$ and $v(x,y)$, each of two real variables, $x=$Re $z$ and $y=$Im $z$. Thus, \[f(z)=u(x,y)+iv(x,y)\] Graphical Representation There are two alternative representations for a function of a complex variable. First, we can plot the surfaces $u(x,y)$ and $v(x... Read more 31 May 2023 - less than 1 minute read
A complex number $z$ is an ordered pair of real numbers $(x,y)$ with addition and multiplication defined as follows. For two complex numbers $z_1=(x_1,y_1)$ and $z_2=(x_2,y_2)$, $z_1+z_2\equiv(x_1+x_2,y_1+y_2)$ $z_1z_2\equiv(x_1x_2-y_1y_2,x_1y_2+y_1x_2)$. Real and imaginary numbers correspond to numbers of the form $(x,0)$ and $(0,y)$ respective... Read more 27 Mar 2023 - 4 minute read