Fetching the paper…

Reading the bibliography…

Loop Quantum Cosmology from Loop Quantum Gravity · Around

2014

Loop Quantum Cosmology from Loop Quantum Gravity

Alesci, Emanuele, Cianfrani, Francesco

Original
PDF
Post on X

Understand

We show how Loop Quantum Cosmology can be derived as an effective semiclassical description of Loop Quantum Gravity.

Using the tools of QRLG, a gauge fixed version of LQG, we take the coherent states of the fundamental microscopic theory suitable to describe a Bianchi I Universe and we find a mapping between the expectation value of the Hamiltonian and the dynamics of LQC.
Our results are in agreement with a lattice refinement framework for LQC, thus the so called ``old'' and ``improved-dynamics'' regularization schemes can be reproduced.
These amount to different choices of relations between local variables and the smeared ones entering the definition of the coherent states.

Built on

C. W. Misner, Phys. Rev. 186
1969
Earlier work this paper cites.
T. Thiemann, Class. Quant. Grav
1998
Earlier work this paper cites.
T. Thiemann, Class. Quant. Grav. 18
2001
Earlier work this paper cites.
M. Bojowald and G. Date, Phys. Rev. Lett. 92
2004
Earlier work this paper cites.
A. Ashtekar, T. Pawlowski and P. Singh, Phys. Rev. Lett. 96
2006
Earlier work this paper cites.
C. Rovelli, “Quantum gravity”, (Cambridge University Press, Cambridge, 2004); A. Ashtekar and J. Lewandowski, Class. Quant. Grav. 21
2006
Earlier work this paper cites.
M. Bojowald, Gen. Rel. Grav. 38
2006
Earlier work this paper cites.
P. Singh, K. Vandersloot and G. V. Vereshchagin, Phys. Rev. D 74
2006
Earlier work this paper cites.
T. Thiemann, Class. Quant. Grav. 23
2006
Earlier work this paper cites.

Similar

M. Bojowald and G. M. Hossain, Class. Quant. Grav. 24
Original
2007
Cited alongside, same era.
M. Martin-Benito, G. A. Mena Marugan and T. Pawlowski, Phys. Rev. D 78
Original
2008
Cited alongside, same era.
M. Bojowald and G. M. Hossain, Phys. Rev. D 77
Original
2008
Cited alongside, same era.
A. Ashtekar and E. Wilson-Ewing, Phys. Rev. D 79
Original
2009
Cited alongside, same era.
M. Bojowald, Lect. Notes Phys. 835
2011
Cited alongside, same era.

Then

I. Agullo, A. Ashtekar and W. Nelson, Phys. Rev. Lett. 109
Original
2012
Later among the works it cites.
G. Calcagni, Annalen Phys. 525
Original
2013
Later among the works it cites.
E. Alesci and F. Cianfrani, Europhys. Lett. 104
Original
2013
Later among the works it cites.
E. Alesci and F. Cianfrani, Phys. Rev. D 87
Original
2013
Later among the works it cites.
E. Alesci, F. Cianfrani and C. Rovelli, Phys. Rev. D 88
Original
2013
Later among the works it cites.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

A. Ashtekar and P. Singh, Class. Quant. Grav. 28

2011

Cited alongside, same era.

M. Bojowald, G. Calcagni and S. Tsujikawa, Phys. Rev. Lett. 107

2011

Cited alongside, same era.

M. Bojowald, G. Calcagni and S. Tsujikawa, JCAP 1111

2011

Cited alongside, same era.

K. Banerjee, G. Calcagni and M. Martin-Benito, SIGMA 8

2012

Cited alongside, same era.

E. Alesci and F. Cianfrani, Phys. Rev. D 90

Cited in the paper.

E. Alesci and F. Cianfrani, in preparation

Cited in the paper.

S. Gielen and D. Oriti, arXiv:1407.8167 [gr-qc]

Original

Cited in the paper.

S. Gielen, D. Oriti and L. Sindoni, Phys. Rev. Lett. 111

2013

Later among the works it cites.

R. Gambini and J. Pullin, Phys. Rev. Lett. 110

2013

Later among the works it cites.

S. Gielen, D. Oriti and L. Sindoni, JHEP 1406

Original

2014

Closest in time.

G. Calcagni, Phys. Rev. D 90

2014

Closest in time.