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gr-qc2014★ 9 cited
Higher Order Lagrangians inspired by the Pais-Uhlenbeck Oscillator and their cosmological applications
Gustavo Pulgar, Joel Saavedra, Genly Leon +1
We study higher derivative terms associated with scalar field cosmology. We consider a coupling between the scalar field and the geometry inspired by the Pais-Uhlenbeck oscillator,…
gr-qc2008★ 3 cited
Hawking radiation via Anomaly and Tunneling method from Unruh's and Canonical acoustic black hole
Ramon Becar, Pablo Gonzalez, Gustavo Pulgar +1
Hawking radiation from Unruh's and Canonical acoustic black hole is considered from viewpoint of anomaly cancellation method developed by Robinson and Wilczek. Thus, the physics ne…