Spin-Polarised Cylinders and Torsion Balances to test Einstein-Cartan Gravity?

Details Spin-Polarised Cylinders and Torsion Balances to test Einstein-Cartan Gravity? Spin-Polarised Cylinders and Torsion Balances to test Einstein-Cartan Gravity?

2001-02-06

arxiv.org/abs/gr-qc/0102020v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

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Scientific paper

Spin-Polarised cylinders with and without axial magnetic fields are obtained as particular families of solutions of Einstein-Cartan gravity (EC).The first solution represents a spin-polarised cylinder in teleparallel gravity.The second solution is a magnetized solution representing a spin-polarised cylinder where the magnetic fields and spins are distributed along the infinite axis of the cylinder.Altough it seems that the first solution is less realist than the second it could be obtained by shielding the magnetic fields with a superconductor.The second solution is computed by taking into account the Ritter et al. experiment with the test spin-polarized mass to test spin dependent forces.Ritter experiment deals with a test mass with $>10^{23}$ spin polarized electrons which leads to a spin density of $10^{-4}gcm^{-1}s^{-1}$.

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