Abbreviations and Symbols
xxxiii
E
= ω = hν = c|k|, energy
ω
Angular frequency
ν
Frequency
λ
= hc/E = 2π/|k|, wavelength
E 0
Energy of a mode’s (or system’s) ground state
E g
Band gap energy
γ
Linewidth, FWHM
m
Mass (of a particle)
μ
Reduced mass (also used as symbol representing the chemical potential in
distribution functions)
E
Electric field (vector)
B
Magnetic flux (vector)
r
Position (vector)
T
Temperature
P
Pump power/rate
j
Current density
θ
Angle
|ϕ
Wave-function (quantum-mechanical state)
H
Hamiltonian of a system
g
Coupling constant (coupling strength)
2 0
= 2g = E Rabi , (vacuum) Rabi splitting, with 2Ω 0 = Ω Rabi the Rabi
oscillation frequency
M
Transition-matrix element
f
Oscillator strength
(in optics descriptions f is typically used as focal length)
τ
Lifetime
(also used as symbol representing the delay time as a parameter in some
experiments)
ΔE
= E 0 − E ab , spectral detuning of two oscillators (here of the light field
and an electronic transition from state a to b, respectively)
Q
= E/γ , quality factor
|X |
2
Excitonic fraction of a polariton (one of the Hopfield coefficients)
|C|
2
Photonic fraction of a polariton (one of the Hopfield coefficients)
g
(2)
(τ ) Second-order temporal autocorrelation function
xxxiii
E
= ω = hν = c|k|, energy
ω
Angular frequency
ν
Frequency
λ
= hc/E = 2π/|k|, wavelength
E 0
Energy of a mode’s (or system’s) ground state
E g
Band gap energy
γ
Linewidth, FWHM
m
Mass (of a particle)
μ
Reduced mass (also used as symbol representing the chemical potential in
distribution functions)
E
Electric field (vector)
B
Magnetic flux (vector)
r
Position (vector)
T
Temperature
P
Pump power/rate
j
Current density
θ
Angle
|ϕ
Wave-function (quantum-mechanical state)
H
Hamiltonian of a system
g
Coupling constant (coupling strength)
2 0
= 2g = E Rabi , (vacuum) Rabi splitting, with 2Ω 0 = Ω Rabi the Rabi
oscillation frequency
M
Transition-matrix element
f
Oscillator strength
(in optics descriptions f is typically used as focal length)
τ
Lifetime
(also used as symbol representing the delay time as a parameter in some
experiments)
ΔE
= E 0 − E ab , spectral detuning of two oscillators (here of the light field
and an electronic transition from state a to b, respectively)
Q
= E/γ , quality factor
|X |
2
Excitonic fraction of a polariton (one of the Hopfield coefficients)
|C|
2
Photonic fraction of a polariton (one of the Hopfield coefficients)
g
(2)
(τ ) Second-order temporal autocorrelation function