Atsushi Higuchi

Search results

• 2024

  Classical Larmor formula through the Unruh effect for uniformly accelerated electrons

  Vacalis, G., Higuchi, A., Bingham, R. & Gregori, G., 25 Jan 2024, In: Physical Review D. 109, 10 p., 024044.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Gravitational bremsstrahlung and the Fulling-Davies-Unruh thermal bath

  Higuchi, A., Crispino, L. C. B. & Brito, J. P. B., 27 Mar 2024, In: Physical Review D. 109, 15 p., 064080.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Semiclassical bremsstrahlung from a charge radially falling into a Schwarzschild black hole

  Higuchi, A., Brito, J. P. B., Bernar, R. P. & Crispino, L. C. B., 16 Apr 2024, In: Physical Review D. 109, 17 p., 084041.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2022

  Automorphic scalar fields in two-dimensional de Sitter space

  Higuchi, A., Schmieding, L. & Serrano Blanco, D., 13 Dec 2022, In: Classical and Quantum Gravity. 40, 29 p., 015009.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Hartle-Hawking state in the real-time formalism

  Higuchi, A. & Lima, W. C. C., 7 Feb 2022, In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 105, 22 p., 045002.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Scalar field in AdS2 and representations of SL(2,R)

  Higuchi, A., Schmieding, L. & Serrano Blanco, D., 1 Dec 2022, In: Journal of Mathematical Physics. 63, 26 p., 122301.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2021

  Entanglement of the vacuum between left, right, future, and past: Dirac spinor in Rindler spaces and Kasner spaces

  Higuchi, A., Ueda, K., Yamamoto, K., Rohim, A. & Nan, Y., 8 Jun 2021, In: Physical Review D. 103, 12, 125005.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Equivalence principle in Reissner-Nordström geometry

  Bernar, R. P., Crispino, L. C. B., Lima, H. C. D. & Higuchi, A., 1 Nov 2021, In: Annals of Physics. 434, 10 p., 168595.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Infrared problem in the Faddeev-Popov-ghost propagator in perturbative quantum gravity in de Sitter spacetime

  Gibbons, J., Higuchi, A. & Lima, W. C. C., 29 Mar 2021, In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 103, 06, 21 p., 065016.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2020

  Comment on "The equivalence principle in the Schwarzschild geometry" [Am. J. Phys. 62, 1037 (1994)]

  Higuchi, A., Crispino, L. C. B., Bernar, R. P. & Lima, H. C. D., 23 Jun 2020, (Accepted/In press) In: American Journal of Physics.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Equivalence between the in-in perturbation theories for quantum fields in Minkowski spacetime and in the Rindler wedge

  Higuchi, A. & Couto Correa De Lima, W., 17 Mar 2020, In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 101, 12 p., 065009.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• On-axis tidal forces in Kerr spacetime

  Higuchi, A., Crispino, L. C. B. & Lima, H. C. D., 30 Mar 2020, (E-pub ahead of print) In: European Physical Journal Plus. 135, 334

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Supergravity on a 3-torus: quantum linearization instabilities with a supergroup

  Higuchi, A. & Schmieding, L., 28 Jul 2020, (E-pub ahead of print) In: Classical and Quantum Gravity. 37, 16, p. 1-36 36 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2018

  Circular geodesic radiation in Schwarzschild spacetime: A semiclassical approach

  Higuchi, A., Crispino, L. C. B. & Bernar, R. P., 21 Mar 2018, (E-pub ahead of print) In: International Journal of Modern Physics D.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Gibbons-Hawking radiation of gravitons in the Poincare and static patches of de Sitter spacetime

  Higuchi, A., Crispino, L. C. B. & Bernar, R. P., 4 Apr 2018, In: Physical Review D. 97, p. 1-11 11 p., 085005.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Infrared divergences for free quantum fields in cosmological spacetimes

  Higuchi, A. & Rendell, N. L., 30 Apr 2018, In: Classical and Quantum Gravity. 35, 11, 20 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Scalar radiation from a radially infalling source into a Schwarzschild black hole in the framework of quantum field theory

  Oliveira, L. A., Crispino, L. C. B. & Higuchi, A., 16 Feb 2018, (E-pub ahead of print) In: European Physical Journal C (Particles and Fields). 78, 133, p. 1-11 11 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Vacuum state in de Sitter spacetime with static charts

  Higuchi, A. & Yamamoto, K., 25 Sept 2018, In: Physical Review D. 98, 6, 12 p., 065014.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2017

  Compactly supported linearised observables in single-field inflation

  Fröb, M. B., Hack, T. & Higuchi, A., 25 Jul 2017, In: Journal of Cosmology and Astroparticle Physics. 2017, 7, 32 p., 043.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Entanglement of the vacuum between left, right, future, and past spacetime states: The origin of entanglement-induced quantum radiation

  Higuchi, A., Yamamoto, K., Ueda, K. & Iso, S., 31 Oct 2017, In: Physical Review D. 96, 8, p. 1-24 25 p., 083531.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Gravitational waves emitted by a particle rotating around a Schwarzschild black hole: A semiclassical approach

  Higuchi, A., Bernar, R. P. & Crispino, L. C. B., 24 Mar 2017, In: Physical Review D. 95, 6, 14 p., 064042.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2016

  Graviton two-point function in 3+1 static de Sitter spacetime

  Bernar, R. P., Crispino, L. C. B. & Higuchi, A., 1 Aug 2016, In: International Journal of Modern Physics D. 25, 12 p., 1641016.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Mode-sum construction of the covariant graiviton two-point function in the Poincaré patch of de Sitter space

  Higuchi, A., Fröb, M. B. & Lima, W., 2 Jun 2016, In: Physical Review D. 93, p. 1-30 30 p., 124006.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• Tidal Forces in Reissner-Nordström Spacetimes

  Crispino, L. C. B., Higuchi, A., Oliveira, L. A. & Oliveira, E. S. D., 26 Mar 2016, (E-pub ahead of print) In: European Physical Journal C (Particles and Fields). 76, 3, 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

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• 2015

  Removing the Faddeev-Popov zero modes from Yang-Mills theory in spacetimes with compact spatial sections

  Higuchi, A. & Gibbons, J., 6 Jan 2015, In: Physical Review D. 91, 2, 024006.

  Research output: Contribution to journal › Article › peer-review

• Scattering from charged black holes and supergravity

  Crispino, L. C. B., Dolan, S. L., Higuchi, A. & Oliveira, E., 26 Oct 2015, In: Physical Review D. 92, 084056.

  Research output: Contribution to journal › Article › peer-review
• 2014

  Inferring black hole charge from backscattered electromagnetic radiation

  Crispino, L. C. B., Dolan, S. L., Higuchi, A. & Oliveira, E. S., 15 Sept 2014, In: Physical Review D. 90, 6, 024045.

  Research output: Contribution to journal › Article › peer-review

• Infrared-finite graviton two-point function in static de Sitter space

  Bernar, R. P., Crispino, L. C. B. & Higuchi, A., 18 Jul 2014, In: Physical Review D. 90, 2, 18 p., 024045.

  Research output: Contribution to journal › Article › peer-review

• Mode-sum construction of the two-point functions for the Stueckelberg vector fields in the Poincaré patch of de Sitter space

  Fröb, M. B. & Higuchi, A., 2 Jun 2014, In: Journal of Mathematical Physics. 55, 21 p., 062301.

  Research output: Contribution to journal › Article › peer-review
• 2013

  Graybody factors for nonminimally coupled scalar fields in Schwarzschild-de Sitter spacetime

  Crispino, L. C. B., Higuchi, A., Oliveira, E. S. & Rocha, J. V., 23 May 2013, In: Physical Review D. 87, 10, 104034.

  Research output: Contribution to journal › Article › peer-review
• 2012

  Comment on 'Hawking Radiation, Unruh Radiation, and the Equivalence Principle'

  Crispino, L. C. B., Higuchi, A. & Matsas, G. E. A., 25 Jan 2012, In: Physical Review Letters. 108, 4, 2 p., 049001.

  Research output: Contribution to journal › Article › peer-review

• Physical equivalence between the covariant and physical graviton two-point functions in de Sitter spacetime

  Higuchi, A. & Mir, F., 13 Jun 2012, In: Phys Rev D. 85, 12, 124021.

  Research output: Contribution to journal › Article › peer-review
• 2011

  de Sitter invariance of the dS graviton vacuum

  Higuchi, A., Marolf, D. & Morrison, I. A., 21 Dec 2011, In: Classical and Quantum Gravity. 28, 24, 245012.

  Research output: Contribution to journal › Article › peer-review

• Equality between gravitational and electromagnetic absorption cross sections of extreme Reissner-Nordstrom black holes

  Oliveira, E. S., Crispino, L. C. B. & Higuchi, A., 25 Oct 2011, In: Phys Rev D. 84, 8, 084048.

  Research output: Contribution to journal › Article › peer-review

• On the equivalence between Euclidean and in-in formalisms in de Sitter QFT

  Higuchi, A., Marolf, D. & Morrison, I. A., 15 Apr 2011, In: Physical review d. 83, 8, p. 1-18 18 p., 084029.

  Research output: Contribution to journal › Article › peer-review
• 2010

  Influence of boundary conditions on the radiation emitted by an accelerated source

  Alves, D. T., Crispino, L. C. B., de Lima, M. C. & Higuchi, A., 15 Mar 2010, In: Physical review d. 81, 6, 5 p., 065002.

  Research output: Contribution to journal › Article › peer-review

• Low-frequency absorption cross section of the electromagnetic waves for extreme Reissner-Nordstrom black holes in higher dimensions

  Crispino, L. C. B., Higuchi, A. & Matsas, G. E. A., 1 Dec 2010, In: Phys Rev D. 82, 12, 1 p., 124038.

  Research output: Contribution to journal › Article › peer-review
• 2009

  A conformally coupled massive scalar field in the de Sitter expanding universe with the mass term treated as a perturbation

  Higuchi, A. & Cheong, L. Y., 7 Jul 2009, In: Classical and Quantum Gravity. 26, 13, p. 1-14 14 p., 135019.

  Research output: Contribution to journal › Article › peer-review

• Classical and quantum radiation reaction in conformally flat spacetime

  Higuchi, A. & Walker, P. J., 1 May 2009, In: Phys Rev D. 79, 10, p. 105023 1 p., 105023.

  Research output: Contribution to journal › Article › peer-review

• Decay of the free-theory vacuum of scalar field theory in de Sitter spacetime in the interaction picture

  Higuchi, A., 7 Apr 2009, In: Classical and Quantum Gravity. 26, 7, p. 1-6 6 p., 072001.

  Research output: Contribution to journal › Article › peer-review

• Electromagnetic absorption cross section of Reissner-Nordstroumlm black holes revisited

  Crispino, L. C. B., Higuchi, A. & Oliveira, E. S., 17 Nov 2009, In: Physical review d. 80, 10, 8 p., 104026.

  Research output: Contribution to journal › Article › peer-review

• More on the covariant retarded Green's function for the electromagnetic field in de Sitter spacetime

  Higuchi, A., Cheong, L. Y. & Nicholas, J. R., 13 Nov 2009, In: Physical review d. 80, 10, 4 p., 107502.

  Research output: Contribution to journal › Article › peer-review

• Quantum corrections to the Larmor radiation formula in scalar electrodynamics

  Higuchi, A. & Walker, P. J., 17 Nov 2009, In: Physical review d. 80, 10, p. 1-12 12 p., 105019.

  Research output: Contribution to journal › Article › peer-review
• 2008

  Faddeev-Popov ghost propagators for Yang-Mills theories and perturbative quantum gravity in the covariant gauge in de Sitter spacetime

  Mir, F. & Higuchi, A., 26 Sept 2008, In: Physical review d. 78, 6, p. 1 1 p., 067502.

  Research output: Contribution to journal › Article › peer-review

• How to use retarded Green's functions in de Sitter spacetime

  Higuchi, A. & Cheong, L. Y., 24 Oct 2008, In: Physical review d. 78, 8, 17 p., 084031.

  Research output: Contribution to journal › Article › peer-review

• The Unruh effect and its applications

  Crispino, L. C. B., Higuchi, A. & Matsas, G. E. A., 1 Jul 2008, In: Reviews of Modern Physics. 80, 3, p. 787-838 52 p.

  Research output: Contribution to journal › Literature review › peer-review
• 2007

  Absorption cross section of electromagnetic waves for Schwarzschild black holes

  Crispino, L. C. B., Oliveira, E. S., Higuchi, A. & Matsas, G. E. A., May 2007, In: Physical review d. 75, 10, p. - 4 p., 104012.

  Research output: Contribution to journal › Article › peer-review

• On maximal entanglement between two pairs in four-qubit pure states

  Brierley, S. & Higuchi, A., 20 Jul 2007, In: Journal of Physics A: Mathematical and Theoretical. 40, 29, p. 8455-8465 11 p.

  Research output: Contribution to journal › Article › peer-review
• 2006

  Radiation reaction on charged particles in three-dimensional motion in classical and quantum electrodynamics

  Higuchi, A. & Martin, G. D. R., Jan 2006, In: Physical review d. 73, 2, p. - 12 p., 025019.

  Research output: Contribution to journal › Article › peer-review

• Topological censorship and chronology protection

  Friedman, J. L. & Higuchi, A., Jan 2006, In: Annalen der physik. 15, 1-2, p. 109-128 20 p.

  Research output: Contribution to journal › Literature review › peer-review