Some symbols in modern physics
ℏ — Reduced Planck's constant
c — Speed of light
e — Elementary charge
G — Gravitational constant
α — Fine-structure constant
γ — Lorentz factor
ψ — Wavefunction
Λ — Cosmological constant
∇ — Nabla/gradient operator
Φ — Magnetic flux
⟨⟩ — Expectation value
