Spin Stiffness
Spin Stiffness
Autor: | Eloi Rylan Koios |
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Verfügbarkeit: | Auf Lager. |
Artikelnummer: | 983754 |
ISBN / EAN: | 9786137939864 |
Zusatzinformation
- Autor: Eloi Rylan Koios
- Verlag: Betascript Publishing
- ISBN / EAN: 9786137939864
- Bindung: Taschenbuch
Produktbeschreibung
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The spin-stiffness or spin rigidity or helicity modulus or the "superfluid density" (for bosons the superfluid density is proportional to the spin stiffness) is a constant which represents the change in the ground state energy of a spin system as a result of introducing a slow in plane twist of the spins. The importance of this constant is in its use as an indicator of quantum phase transitions-- specifically in models with metal-insulator transitions such as Mott insulators. It is also related to other topological invariants such as the Berry phase and Chern numbers as in the Quantum hall effect.
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