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2569 results

Project-declaredLean 4.28.0

Twirling general matrix

twirling_general_matrix

Project documentation

The trace functional is invariant under 1_A ⊗ V conjugation. -/ theorem sandwichedTraceFunctional_conj_tensorUnitary (ρ σ : MState (dA × dB)) (V : Matrix.unitaryGroup dB ℂ) : Q̃_ α(ρ.conjTensorUnitary V‖σ.conjTensorUnitary V) = Q̃_ α(ρ‖σ) := by exact sandwichedTraceFunctional_conj_unitary_MState _ ρ σ section twirling variable {dA dB : Type*} variable [...

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.28.0

Twirling hermitian entry

twirling_hermitian_entry

Project documentation

The trace functional is invariant under 1_A ⊗ V conjugation. -/ theorem sandwichedTraceFunctional_conj_tensorUnitary (ρ σ : MState (dA × dB)) (V : Matrix.unitaryGroup dB ℂ) : Q̃_ α(ρ.conjTensorUnitary V‖σ.conjTensorUnitary V) = Q̃_ α(ρ‖σ) := by exact sandwichedTraceFunctional_conj_unitary_MState _ ρ σ section twirling variable {dA dB : Type*} variable [...

quantum informationentropyquantum channels

Source project: quantumInfo

Person-level attribution pending.

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Project-declaredLean 4.32.0

Two sided metric carleson

two_sided_metric_carleson

Plain-language statement

Let 1<q21<q\le2 and let qq' be its Hölder conjugate. Assume a4a\ge4 and that the truncated Calderón-Zygmund operators TrT_r satisfy the required uniform strong L2L^2 estimate for every r>0r>0. If FF and GG are measurable and ff is measurable with f(x)1F(x)\lVert f(x)\rVert\le\mathbf{1}_F(x), then the two-sided metric Carleson operator satisfies

G+CKf(x)dxC(a,q)μ(G)1/qμ(F)1/q.\int_G^+ \mathcal C_K f(x)\,dx\le C(a,q)\,\mu(G)^{1/q'}\mu(F)^{1/q}.

harmonic analysisFourier analysismeasure theory

Source project: Carleson formalization

Person-level attribution pending.

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Project-declaredLean 4.32.0

Two sided metric carleson has Lorentz Type

two_sided_metric_carleson_hasLorentzType

Plain-language statement

Assume the phase space is countable, a4a\ge4, 1<q<21<q<2, and every truncated Calderón-Zygmund operator TrT_r has the required uniform strong L2L^2 bound. Then the two-sided metric Carleson operator is bounded from Lorentz Lq,1L^{q,1} to weak Lorentz Lq,L^{q,\infty}, with the explicit project constant 4C(a,q)/q4C(a,q)/q.

harmonic analysisFourier analysismeasure theory

Source project: Carleson formalization

Person-level attribution pending.

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Project-declaredLean 4.32.0

Potential Is Stable iff forall gram Vector

TwoHiggsDoublet.potentialIsStable_iff_forall_gramVector

Project documentation

A function related to the quartic term of the potential, used in the stableness condition and equivalent to the term J4 in https://arxiv.org/abs/hep-ph/0605184. -/ noncomputable def quarticTermReduced (P : PotentialParameters) (k : EuclideanSpace ℝ (Fin 3)) : ℝ := P.η (Sum.inl 0) (Sum.inl 0) + 2 * ∑ b, k b * P.η (Sum.inl 0) (Sum.inr b) + ∑ a, ∑ b, k a *...

physicsquantum field theoryrelativity

Source project: Physlib

Person-level attribution pending.

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