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Grassmann Variables, Supersymmetry and Supersymmetric ...

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Fermionic Path Integral<br />

SUSY<br />

References<br />

The end<br />

Basic idea of <strong>Supersymmetry</strong><br />

<strong>Supersymmetry</strong><br />

<strong>Supersymmetric</strong> harmonic oscillator<br />

The generators Q <strong>and</strong> Q † must satisfy an algebra of<br />

anticommutation <strong>and</strong> commutation relations with the schematic<br />

form:<br />

{Q, Q † } = Pµ, {Q, Q} = {Q † , Q † } = 0, [Pµ, Q] = [Pµ, Q † ] = 0,<br />

where Pµ is the four-momentum generator of spacetime<br />

translations.<br />

The single-particle states of a supersymmetric theory fall into<br />

irreducible representations of the supersymmetry algebra, called<br />

supermultiplets.<br />

Each supermultiplet contains both fermion <strong>and</strong> boson states,<br />

which are commonly known as superpartners of each other.<br />

By definition, if |Ω > <strong>and</strong> |Ω ′ > are members of the same supermultiplet,<br />

then |Ω ′ > is proportional to some combination of Q <strong>and</strong> Q † operators acting<br />

on |Ω >, up to a spacetime translation or rotation.<br />

Anna Pachol GV,SUSY ans SHO

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