# Dr Ricardo Monteiro

### Dr Ricardo Monteiro

**Royal Society University Research Fellow**

**Address:**- School of Physics and Astronomy

Queen Mary, University of London

327 Mile End Road, London, E1 4NS

**Telephone: **0207 882 7813**Room: **GO Jones 225**Email: **

### My research interests

I have a broad interest in high-energy theoretical physics. My recent work focuses on perturbative aspects of quantum field theory, quantum gravity and string theory.

One of my main areas of activity has been the perturbative description of gravity as a double copy of gauge theory. This idea appeared in the study of scattering amplitudes, which are notoriously complicated in theories of gravity if traditional methods are used. The double-copy technique allows us to perform certain gravity computations using much simpler computations in gauge theory. My goals here are two-fold: to investigate the mathematical structure behind the double copy, including at loop level (quantum effects), and to apply this technique to a wider set of problems, including the study of classical solutions (perturbative or exact) in gravity theories.

My other major line of work is the description of certain quantum field theories in terms of worldsheet models inspired by string theory, known as ambitwistor strings. These models underlie a new mathematical formalism for the scattering amplitudes of massless particles, based on scattering equations that relate the kinematic invariants to the moduli space of a sphere. My main focus here has been the extension of this very promising formalism to loop level, which opens the possibility of a much wider application. Both gauge theory and gravity admit this type of formalism, and this is also a promising avenue to understand the double-copy relation at a more fundamental level.

Apart from these topics, I maintain my interest for areas in which I have worked in the past. These include black holes in general relativity and in string theory, and the holographic duality between conformal field theory / gauge theory and string theory / gravity.

### My grants

Grants held at QMUL:

Royal Society University Research Fellowship, 2017 - 2021 (£452,148)

Royal Society Grant supporting a PhD Studentship, 2017 - 2021 (£85,492)

### My teaching

I currently teach the non-examinable undergraduate course Synoptic Physics (2017-2018 academic year). The course covers informally important topics in basic Physics, namely Gravitational and Rotational Forces, Electromagnetism and Lorentz Forces, Optics and Interference, Thermodynamics, Quantum Physics, Nuclear Physics and Astrophysics. The basic goal is to refresh the memories of 3rd year students about these topics and their connections. The class format is not that of a formal lecture, but rather of a discussion, where a small group of students is faced with a series of questions that they must answer either orally or on the whiteboard.

I also supervise 3rd-year undergraduate projects.

### My publications

You can see a list of my publications at INSPIRE-HEP.

This is not an exhaustive list and I would be happy to discuss other project possibilities.