Psi /ˈ(p)saɪ, ˈ(p)siː/ (P)SY, (P)SEE (uppercase Ψ, lowercase ψ or 𝛙; Greek: ψι psi [ˈpsi]) is the twenty-third and penultimate letter of the Greek alphabet...

\mathbf {j} =0,} where j = 1 2 m ( Ψ ∗ p ^ Ψ − Ψ p ^ Ψ ∗ ) = − i ℏ 2 m ( ψ ∗ ∇ ψ − ψ ∇ ψ ∗ ) = ℏ m Im ⁡ ( ψ ∗ ∇ ψ ) {\displaystyle \mathbf {j} ={\frac...

ψ 4 + ψ 3 − ψ 2 − ψ 1 ] + i ∂ y [ + ψ 4 − ψ 3 − ψ 2 + ψ 1 ] + i ∂ z [ + ψ 3 − ψ 4 − ψ 1 + ψ 2 ] − m [ + ψ 1 + ψ 2 + ψ 3 + ψ 4 ] = i ∂ t [ − ψ 1 − ψ 2...

( x ψ ( x ) ) d x ] d x = i ℏ ⋅ ∫ − ∞ ∞ ψ ∗ ( x ) [ ( − x ⋅ d ψ ( x ) d x ) + ψ ( x ) + ( x ⋅ d ψ ( x ) d x ) ] d x = i ℏ ⋅ ∫ − ∞ ∞ ψ ∗ ( x ) ψ ( x )...

The J/ψ (J/psi) meson /ˈdʒeɪ ˈsaɪ ˈmiːzɒn/ is a subatomic particle, a flavor-neutral meson consisting of a charm quark and a charm antiquark. Mesons formed...

and the "upper" path ψ u = ( 0 1 ) {\displaystyle \psi _{u}={\begin{pmatrix}0\\1\end{pmatrix}}} , that is, ψ = α ψ l + β ψ u {\displaystyle \psi =\alpha...

⟩ ⟨ ψ | ≐ ( ϕ 1 ϕ 2 ⋮ ϕ N ) ( ψ 1 ∗ ψ 2 ∗ ⋯ ψ N ∗ ) = ( ϕ 1 ψ 1 ∗ ϕ 1 ψ 2 ∗ ⋯ ϕ 1 ψ N ∗ ϕ 2 ψ 1 ∗ ϕ 2 ψ 2 ∗ ⋯ ϕ 2 ψ N ∗ ⋮ ⋮ ⋱ ⋮ ϕ N ψ 1 ∗ ϕ N ψ 2 ∗ ⋯...

ψ − n = 3. {\displaystyle \sum _{n=0}^{7}\psi ^{-n}=3.} For every integer n {\displaystyle n} one has ψ n = ψ n − 1 + ψ n − 3 = ψ n − 2 + ψ n − 3 + ψ...

sequence for ψ ( Ω ) {\displaystyle \psi (\Omega )} is: ψ ( 0 ) {\displaystyle \psi (0)} , ψ ( ψ ( 0 ) ) {\displaystyle \psi (\psi (0))} , ψ ( ψ ( ψ ( 0 ) )...

= ( ψ 1 ( α ) − ψ 1 ( α + β ) ) ( ψ 1 ( β ) − ψ 1 ( α + β ) ) − ( − ψ 1 ( α + β ) ) ( − ψ 1 ( α + β ) ) = ψ 1 ( α ) ψ 1 ( β ) − ( ψ 1 ( α ) + ψ 1 ( β...

discovered the theorem in 1929. Mathematically, they are written Bloch function ψ ( r ) = e i k ⋅ r u ( r ) {\displaystyle \psi (\mathbf {r} )=e^{i\mathbf {k}...

{\displaystyle |1\rangle } : | Ψ ⟩ = c 0 | 0 ⟩ + c 1 | 1 ⟩ , {\displaystyle |\Psi \rangle =c_{0}|0\rangle +c_{1}|1\rangle ,} where | Ψ ⟩ {\displaystyle |\Psi...

system. The most common symbols for a wave function are the Greek letters ψ and Ψ (lower-case and capital psi, respectively). Wave functions are complex-valued...

derivative in the Lagrangian gives L = − 1 4 F μ ν F μ ν + i ψ ¯ γ μ ∂ μ ψ − e ψ ¯ γ μ A μ ψ − m ψ ¯ ψ {\displaystyle {\mathcal {L}}=-{\frac {1}{4}}F_{\mu \nu...

− g μ ν ∇ μ ∇ ν ψ + m 2 c 2 ℏ 2 ψ = − g μ ν ∇ μ ( ∂ ν ψ ) + m 2 c 2 ℏ 2 ψ = − g μ ν ∂ μ ∂ ν ψ + g μ ν Γ σ μ ν ∂ σ ψ + m 2 c 2 ℏ 2 ψ , {\displaystyle...

∇ ( ψ ϕ ) = ϕ ∇ ψ + ψ ∇ ϕ ∇ ( ψ A ) = ( ∇ ψ ) A T + ψ ∇ A   =   ∇ ψ ⊗ A + ψ ∇ A ∇ ⋅ ( ψ A ) = ψ ∇ ⋅ A + ( ∇ ψ ) ⋅ A ∇ × ( ψ A ) = ψ ∇ × A + ( ∇ ψ ) ×...

terms Ψ ( x , t ) = Ψ A ( x , t ) + Ψ B ( x , t ) {\displaystyle \Psi (x,t)=\Psi _{A}(x,t)+\Psi _{B}(x,t)} : P ( x ) = | Ψ ( x , t ) | 2 = | Ψ A ( x ...

then any ket | ψ ⟩ {\displaystyle |\psi \rangle } is associated with a complex-valued function of three-dimensional space ψ ( r ) ≡ ⟨ r | ψ ⟩ . {\displaystyle...

\mathbf {\hat {p}} } on ψ obtains: p ^ x ψ = − i ℏ ∂ ∂ x ψ = p x ψ p ^ y ψ = − i ℏ ∂ ∂ y ψ = p y ψ p ^ z ψ = − i ℏ ∂ ∂ z ψ = p z ψ {\displaystyle {\begin{aligned}{\hat...

I Like You" (Ψです I LIKE YOU) by Denpagumi.inc. From the thirteenth compiled episode onwards, the opening theme is "Sai-Sai-Saikōchō!" (最Ψ最好調！, The Most...

in terms of the weak until: ψ W φ ≡ (ψ U φ) ∨ G ψ ≡ ψ U (φ ∨ G ψ) ≡ φ R (φ ∨ ψ) ψ U φ ≡ Fφ ∧ (ψ W φ) ψ R φ ≡ φ W (φ ∧ ψ) The strong release binary operator...

as prob before ⁡ ( ψ → ϕ ) = ⟨ ϕ | ρ sys | ϕ ⟩ = ⟨ ϕ | ψ ⟩ ⟨ ψ | ϕ ⟩ = | ⟨ ψ | ϕ ⟩ | 2 = ∑ i | ψ i ∗ ϕ i | 2 + ∑ i j ; i ≠ j ψ i ∗ ψ j ϕ j ∗ ϕ i , {\displaystyle...

function is defined as the logarithmic derivative of the gamma function: ψ ( z ) = d d z ln ⁡ Γ ( z ) = Γ ′ ( z ) Γ ( z ) . {\displaystyle \psi (z)={\frac...

+ ψ + ψ 2 + ⋯ + ψ n ) = φ n + 1 − 1 φ − 1 − ψ n + 1 − 1 ψ − 1 = φ n + 1 − 1 − ψ − ψ n + 1 − 1 − φ = − φ n + 2 + φ + ψ n + 2 − ψ φ ψ = φ n + 2 − ψ n +...

0 ψ n , ℓ , | m |  for  m = 0 2 ( − 1 ) m Re { ψ n , ℓ , | m | }  for  m > 0 = { i 2 ( ψ n , ℓ , − | m | − ( − 1 ) m ψ n , ℓ , | m | )  for  m < 0 ψ n...

∘ ψ ) ∂ u ⋅ ∂ ψ ∂ v − ∂ ( F ∘ ψ ) ∂ v ⋅ ∂ ψ ∂ u = ∂ ψ ∂ v ⋅ ( J ψ ( u , v ) F ) ∂ ψ ∂ u − ∂ ψ ∂ u ⋅ ( J ψ ( u , v ) F ) ∂ ψ ∂ v (chain rule) = ∂ ψ ∂ v...

or psi in Wiktionary, the free dictionary. Psi, PSI or Ψ may refer to: Psi (Greek) (Ψ or ψ), the twenty-third letter of the Greek alphabet Psi (Cyrillic)...

Ψ ∗ 2 m ∇ 2 Ψ + U Ψ ∗ Ψ ] − 1 i ℏ [ − ℏ 2 Ψ 2 m ∇ 2 Ψ ∗ + U Ψ Ψ ∗ ] = 1 i ℏ [ − ℏ 2 Ψ ∗ 2 m ∇ 2 Ψ + U Ψ ∗ Ψ ] + 1 i ℏ [ + ℏ 2 Ψ 2 m ∇ 2 Ψ ∗ − U Ψ ∗ Ψ...

The second Chebyshev function ψ (x) is defined similarly, with the sum extending over all prime powers not exceeding x ψ ( x ) = ∑ k ∈ N ∑ p k ≤ x log...

ψ-Tectorigenin is an O-methylated isoflavone, a type of flavonoid. It can be isolated from Belamcanda chinensis, Dalbergia sissoo. It can also be isolated...