Physics Package - Physics - Maple Help - Maplesoft

# Physics Package

## Category Documents

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Physics/Annihilation
generate "annihilation" operators acting on a given space of quantum states

Physics/Commutator
the commutator A B - B A

Physics/Assume
places assumptions without redefining the variables receiving assumptions - suitable for working with the Physics, VectorCalculus and MathematicalFunctions packages

Physics/Bra
create a Bra state vector of a discrete or continuous space of quantum states in Dirac's notation

Physics/Bracket
compute the scalar product between Bras, Kets, and quantum operators in Dirac's notation

Physics/Check
check the occurrence of more than one noncommutative or anticommutative object in commutative products and the correctness of the free and repeated spacetime indices in a mathematical expression

Physics/Christoffel
The Christoffel symbols

Physics/Coefficients
extract all coefficients of a multivariate polynomial involving commutative and anticommutative variables

Physics/Conventions
Conventions used in the Physics package

Physics/Coordinates
set up aliases for the spacetime coordinates used by Physics commands

Physics/D_
indexed covariant/contravariant differential operator with respect to curvilinear spacetime coordinates

Physics/Dagger
compute the Hermitian conjugate or Adjoint of a given mathematical object

Physics/Define
define a Physics tensor, its structure, and the (anti)symmetry of its indices under permutation

Physics/Dgamma
the Dirac gamma matrices

Physics/.
scalar product between Bras, Kets, and quantum operators, and simplification of contracted indices in spacetime tensors

Physics/Einstein
The Einstein tensor

Physics/Expand
expand noncommutative products over sums, Commutators, Brackets, etc.

Physics/ExteriorDerivative
compute the exterior derivative of a totally antisymmetric covariant tensorial expression

Physics/FeynmanDiagrams
compute the analytic structure of the Feynman Diagrams of a model

Physics/Geodesics
computes and solves the geodesic equations for the spacetime metric

Physics/GrassmannParity
compute the Grassmannian parity, as 0, 1 or undefined, according to whether an expression is commutative, anticommutative or noncommutative

Physics/Gtaylor
Taylor series expansion of expressions involving anticommutative variables

Physics/Intc
quick input of multiple integrals from -infinity to infinity

Physics/Inverse
compute the inverse of an object with respect to noncommutative products

Physics/KillingVectors
computes and solves the Killing equations

Physics/KroneckerDelta
the Kronecker delta symmetric tensor

Physics/LeviCivita
The LeviCivita tensor

Physics/Library
A programming language for Physics

Physics/LieBracket
Compute the Lie bracket of two vector fields using algebraic tensor notation

Physics/LieDerivative
Compute the Lie derivative of a tensorial expression

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