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Inflationary universe with anisotropic hair.

- Masa-aki Watanabe, S. Kanno, J. Soda
- Physics, MedicinePhysical review letters
- 17 February 2009

TLDR

Holographic superconductors with higher curvature corrections

- R. Gregory, S. Kanno, J. Soda
- Physics
- 18 July 2009

We study (3+1)-dimensional holographic superconductors in Einstein-Gauss-Bonnet gravity both numerically and analytically. It is found that higher curvature corrections make condensation harder. We… Expand

Primordial statistical anisotropy generated at the end of inflation

- Shuichiro Yokoyama, J. Soda
- Physics
- 28 May 2008

We present a new mechanism for generating primordial statistical anisotropy of curvature perturbations. We introduce a vector field which has a non-minimal kinetic term and couples with a waterfall… Expand

Radion and holographic brane gravity

The low energy effective theory for the Randall-Sundrum two brane system is investigated with an emphasis on the role of the non-linear radion in the brane world. The equations of motion in the bulk… Expand

The Nature of Primordial Fluctuations from Anisotropic Inflation

- Masa-aki Watanabe, S. Kanno, J. Soda
- Physics
- 27 February 2010

We study the statistical nature of primordial fluctuations from an anisotropic inflation which is realized by a vector field coupled to an inflaton. We find a suitable gauge, which we call the… Expand

Lorentz violating inflation

We explore the impact of Lorentz violation on the inflationary scenario. More precisely, we study the inflationary scenario in the scalar-vector-tensor theory where the Lorentz violating vector is… Expand

Anisotropic power-law inflation

- S. Kanno, J. Soda, Masa-aki Watanabe
- Physics
- 26 October 2010

We study an inflationary scenario in supergravity model with a gauge kinetic function. We find exact anisotropic power-law inflationary solutions when both the potential function for an inflaton and… Expand

Parity violation in graviton non-gaussianity

- J. Soda, H. Kodama, Masato Nozawa
- Physics
- 16 June 2011

We study parity violation in graviton non-gaussianity generated during inflation. We develop a useful formalism to calculate graviton non-gaussianity. Using this formalism, we explicitly calculate… Expand

Schwinger effect in de Sitter space

- M. B. Frob, J. Garriga, +4 authors A. Vilenkin
- Physics
- 16 January 2014

We consider Schwinger pair production in 1+1 dimensional de Sitter space, filled with a constant electric field E. This can be thought of as a model for describing false vacuum decay beyond the… Expand

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