Physical Quantities

$\Psi$	...	time-dependent wave function
$\psi$	...	time-independent wave function
$\vec{v}_{n}$	...	electron velocity in band $n$
$u_{n}$	...	Bloch's envelope wave function
$\vec{P}$	...	momentum
$\vec{p}$	...	quasi-momentum
$\varepsilon$	...	dielectric function
$\boldsymbol{\varepsilon}$	...	strain tensor
$m^{-1}$	...	inverse effective mass tensor
$\beta_{s}$	...	inverse screening length
$\beta$	...	the second Euler angle
$\alpha$	...	the first Euler angle, nonparabolicity parameter
$\gamma$	...	the third Euler angle, band-form function
$f$	...	phase space distribution function
$\vec{K}(t)$	...	phase space trajectory
$S(\vec{k}^{'}, \vec{k}, \vec{r}, t)$	...	differential scattering rate from $\vec{k}^{'}$ to $\vec{k}$
$\lambda(\vec{k})$	...	total scattering rate
$\Xi$	...	deformation potentials
$E_{f}$	...	Fermi energy
$E_{s}$	...	static electric field
$E_{1}$	...	perturbation of the electric field
$f_{s}$	...	static distribution
$f_{1}$	...	perturbation of the electronic distribution
$Q$	...	scattering term
$\epsilon(\vec{k})$	...	dispersion law
$\hat{H}$	...	Hamiltonian operator
$\mathcal{H}$	...	Hamiltonian function

$\vec{H}$	...	external magnetic field
$\vec{A}$	...	vector potential
$\vec{E}$	...	external electric field
$\vec{F}$	...	total external force
$\sigma_{ik}$	...	stress tensor components
$\Omega$	...	thermodynamic potential
$\mu$	...	chemical potential, mobility
$\omega(\vec{k})$	...	dispersion law for phonons
$\tau$	...	relaxation time
$f_{eq}$	...	equilibrium distribution
$L$	...	Lagrangian function
$\vec{u}$	...	atomic displacement
$a_{\vec{q}}$	...	annihilation operator for a phonon with wave vector $\vec{q}$
$a_{\vec{q}}^{+}$	...	creation operator for a phonon with wave vector $\vec{q}$
$c_{\vec{k}}$	...	annihilation operator for an electron with wave vector $\vec{k}$
$c_{\vec{k}}^{+}$	...	creation operator for an electron with wave vector $\vec{k}$
$I_\mathrm{ov}$	...	overlap integral
$u_{s}$	...	sound velocity
$D_{A}$	...	acoustic deformation potential
$D_{o}$	...	optical deformation potential
$\omega_{o}$	...	optical phonon energy
$T_{L}$	...	lattice temperature
$\omega_{pl}$	...	plasmon frequency
$\vec{q}_{c}$	...	cut-off wave vector
$\mathcal{F}$	...	Fermi integrals
$G$	...	screening function
$\vec{b}$	...	Burger's vector

S. Smirnov: