BCS Theory (1957)
Gap equation (T=0):
Δ = 2ω_D exp(-1/λ)
Critical temperature:
k_BT_c = 1.134 ω_D exp(-1/λ)
Quasiparticle energy:
E_k = √(ξ_k² + Δ²)
Coherence length:
ξ₀ = ℏv_F / (π Δ)
Δ/Δ₀: —
State: —
Gap equation (T=0):
Δ = 2ω_D exp(-1/λ)
Critical temperature:
k_BT_c = 1.134 ω_D exp(-1/λ)
Quasiparticle energy:
E_k = √(ξ_k² + Δ²)
Coherence length:
ξ₀ = ℏv_F / (π Δ)
Δ/Δ₀: —
State: —