Níck

theoretical physicist

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Publications by Topic

These are the topics that appear on my research, with size reflecting how often that appears on my publications. Click on each term to see the associated works.

acoustics

• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.

algebraic quantum field theory

• Níckolas de Aguiar Alves. “Quantum Field Theory in Curved Spacetime: An Introduction”. 2023. [INSPIRE]. Unpublished.
• Níckolas de Aguiar Alves. “Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime”. MSc thesis. Santo André, Brazil: Federal University of ABC, 2023. arXiv: 2305.17453 [gr-qc]. [INSPIRE].

asymptotic flatness

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].

asymptotic symmetries

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].

black hole thermodynamics

• Caio César Rodrigues Evangelista and Níckolas de Aguiar Alves. “Using thermodynamics to learn gravitational wave physics”. Eur. J. Phys. 47.2, 025604 (2026). arXiv: 2602.21261 [gr-qc]. [INSPIRE].

compact objects

• Caio César Rodrigues Evangelista and Níckolas de Aguiar Alves. “Using thermodynamics to learn gravitational wave physics”. Eur. J. Phys. 47.2, 025604 (2026). arXiv: 2602.21261 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves, André G. S. Landulfo, and Bruno Arderucio Costa. “Positive mass in general relativity without energy conditions”. Phys. Rev. D 111.4, 044027 (2025). arXiv: 2408.00154 [gr-qc]. [INSPIRE].

cosmological horizons

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].

energy conditions

• Níckolas de Aguiar Alves and Bruno Arderucio Costa. “The Measure of a Mass”. arXiv: 2503.18963 [gr-qc]. [INSPIRE]. Pre-published.
• Níckolas de Aguiar Alves, André G. S. Landulfo, and Bruno Arderucio Costa. “Positive mass in general relativity without energy conditions”. Phys. Rev. D 111.4, 044027 (2025). arXiv: 2408.00154 [gr-qc]. [INSPIRE].

foundations of physics

• Níckolas de Aguiar Alves. “Physics as a branch of poetry”. Am. J. Phys. (2026). [Accepted manuscript]. In press.

gauge theory

• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.

general relativity

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Caio César Rodrigues Evangelista and Níckolas de Aguiar Alves. “Using thermodynamics to learn gravitational wave physics”. Eur. J. Phys. 47.2, 025604 (2026). arXiv: 2602.21261 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and Bruno Arderucio Costa. “The Measure of a Mass”. arXiv: 2503.18963 [gr-qc]. [INSPIRE]. Pre-published.
• Níckolas de Aguiar Alves, André G. S. Landulfo, and Bruno Arderucio Costa. “Positive mass in general relativity without energy conditions”. Phys. Rev. D 111.4, 044027 (2025). arXiv: 2408.00154 [gr-qc]. [INSPIRE].

gravitational waves

• Caio César Rodrigues Evangelista and Níckolas de Aguiar Alves. “Using thermodynamics to learn gravitational wave physics”. Eur. J. Phys. 47.2, 025604 (2026). arXiv: 2602.21261 [gr-qc]. [INSPIRE].

holography

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].

infrared triangle

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.

memory effects

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.

nonperturbative physics

• Níckolas de Aguiar Alves. “Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime”. MSc thesis. Santo André, Brazil: Federal University of ABC, 2023. arXiv: 2305.17453 [gr-qc]. [INSPIRE].

null hypersurfaces

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Null infinity as a Killing horizon”. Phys. Rev. D 112.6, 065017 (2025). arXiv: 2504.12514 [gr-qc]. [INSPIRE].

particle detectors

• Níckolas de Aguiar Alves. “Quantum Field Theory in Curved Spacetime: An Introduction”. 2023. [INSPIRE]. Unpublished.
• Níckolas de Aguiar Alves. “Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime”. MSc thesis. Santo André, Brazil: Federal University of ABC, 2023. arXiv: 2305.17453 [gr-qc]. [INSPIRE].

path integrals

• Níckolas de Aguiar Alves. “Quantum Field Theory in Curved Spacetime: An Introduction”. 2023. [INSPIRE]. Unpublished.

philosophy of physics

• Níckolas de Aguiar Alves. “Physics as a branch of poetry”. Am. J. Phys. (2026). [Accepted manuscript]. In press.

positivity of mass

• Níckolas de Aguiar Alves and Bruno Arderucio Costa. “The Measure of a Mass”. arXiv: 2503.18963 [gr-qc]. [INSPIRE]. Pre-published.
• Níckolas de Aguiar Alves, André G. S. Landulfo, and Bruno Arderucio Costa. “Positive mass in general relativity without energy conditions”. Phys. Rev. D 111.4, 044027 (2025). arXiv: 2408.00154 [gr-qc]. [INSPIRE].

quantum field theory in curved spacetime

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves. “Quantum Field Theory in Curved Spacetime: An Introduction”. 2023. [INSPIRE]. Unpublished.
• Níckolas de Aguiar Alves. “Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime”. MSc thesis. Santo André, Brazil: Federal University of ABC, 2023. arXiv: 2305.17453 [gr-qc]. [INSPIRE].

quantum gravity

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].

renormalization group

• Níckolas de Aguiar Alves. “Nonperturbative Aspects of Quantum Field Theory in Curved Spacetime”. MSc thesis. Santo André, Brazil: Federal University of ABC, 2023. arXiv: 2305.17453 [gr-qc]. [INSPIRE].

soft theorems

• Níckolas de Aguiar Alves. “Lectures on the Bondi–Metzner–Sachs group and related topics in infrared physics”. Eur. Phys. J. C 86.5, 507 (2026). arXiv: 2504.12521 [gr-qc]. [INSPIRE].
• Níckolas de Aguiar Alves and André G. S. Landulfo. “Sound as a gauge theory and its infrared triangle”. arXiv: 2512.15796 [hep-th]. [INSPIRE]. Pre-published.