The Polarization of electron ?

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Electron polarization is a recognized phenomenon linked to the intrinsic property of spin, which is a fundamental characteristic of particles. Dynamic nuclear polarization (DNP) exemplifies this, as it involves transferring spin polarization from electrons to nuclei, aligning their spins. The electron magnetic dipole moment, arising from its spin, further illustrates the magnetic properties associated with electron polarization. The discussion confirms that electron polarization does exist and is crucial in various physical processes. Understanding these concepts is essential for advancements in fields like quantum mechanics and nuclear physics.
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The Polarization of electron.Does this exist ? If not,why? If so,how?
 
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sure it exists...a basic characteristic of particles is SPIN...

Here is one example:
Dynamic nuclear polarization (DNP)[1] [2] results from transferring spin polarization from electrons to nuclei, thereby aligning the nuclear spins to the extent that electron spins are aligned.

http://en.wikipedia.org/wiki/Dynamic_nuclear_polarisation

and
In atomic physics, the electron magnetic dipole moment is the magnetic moment of an electron caused by its intrinsic property of spin.

http://en.wikipedia.org/wiki/Electron_spin
 

Thread 'Two equivalent statements of time reversal symmetric Hamiltonian'

Time reversal invariant Hamiltonians must satisfy ##[H,\Theta]=0## where ##\Theta## is time reversal operator. However, in some texts (for example see Many-body Quantum Theory in Condensed Matter Physics an introduction, HENRIK BRUUS and KARSTEN FLENSBERG, Corrected version: 14 January 2016, section 7.1.4) the time reversal invariant condition is introduced as ##H=H^*##. How these two conditions are identical?
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