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Schreiberdk
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In this new paper today http://arxiv.org/abs/1105.4184, is it considered whether quantum gravity actually has fermionic fields rather than just bosonic fields:
Abstract
It is generally assumed that the gravitational field is bosonic. Here we show
that a simple propagating torsional theory can give rise to localized geometric
structures that can consistently be quantized as fermions under exchange. To
demonstrate this, we show that the model can be formally mapped onto the
Skyrme model of baryons, and we use well-known results from Skyrme theory.
This begs the question: Is geometry bosonic or fermionic (or both)?
So what do you think? Does this change our view on quantum gravity radically?
Abstract
It is generally assumed that the gravitational field is bosonic. Here we show
that a simple propagating torsional theory can give rise to localized geometric
structures that can consistently be quantized as fermions under exchange. To
demonstrate this, we show that the model can be formally mapped onto the
Skyrme model of baryons, and we use well-known results from Skyrme theory.
This begs the question: Is geometry bosonic or fermionic (or both)?
So what do you think? Does this change our view on quantum gravity radically?