76 citations · 504 across the 33 of their papers we have counts for
33 papers
Finite scalar field theory with SU(1,1) spacetime symmetry from near-BPS limits of SYM
Roberto Auzzi, Stefano Baiguera, Lihan Guo +2
In this work, we consider an interacting and matrix-valued scalar quantum field theory that emerges from a near-BPS decoupling limit of super Yang-Mills. The theory…
Probing the bubble interior with entanglement entropy and bulk-cone singularities
Roberto Auzzi, Stefano Baiguera, Lihan Guo +2
In the thin wall approximation, we study a class of asymptotically AdS black holes which contain a spherically symmetric vacuum bubble with a different (positive or negative) cosmo…
CFT Complexity and Penalty Factors
Stefano Baiguera, Nicolas Chagnet, Shira Chapman +1
Quantum complexity of conformal field theory (CFT) states has recently gained significant attention, both as a diagnostic tool in condensed matter systems and in connection with ho…
Quantum complexity in gravity, quantum field theory, and quantum information science
Stefano Baiguera, Vijay Balasubramanian, Pawel Caputa +4
Quantum complexity quantifies the difficulty of preparing a state or implementing a unitary transformation with limited resources. Applications range from quantum computation to co…
Conformal Mapping of Non-Lorentzian Geometries in SU(1,2) Conformal Field Theory
Stefano Baiguera, Troels Harmark, Yang Lei +1
We realize an explicit conformal mapping between the state and operator pictures in a class of (2+1)-dimensional non-Lorentzian field theories with SU(1,2)U(1) conformal sy…
Entanglement spectra from holography
Stefano Baiguera, Shira Chapman, Christian Northe +2
The entanglement spectrum of a bipartite quantum system is given by the distribution of eigenvalues of the modular Hamiltonian. In this work, we compute the entanglement spectrum i…
The Cosmological Switchback Effect II
Stefano Baiguera, Rotem Berman
Recent developments in static patch holography proposed that quantum gravity in de Sitter space admits a dual description in terms of a quantum mechanical theory living on a timeli…
Holographic complexity of the extended Schwarzschild-de Sitter space
Sergio E. Aguilar-Gutierrez, Stefano Baiguera, Nicoló Zenoni
According to static patch holography, de Sitter space admits a unitary quantum description in terms of a dual theory living on the stretched horizon, that is a timelike surface clo…
The Complexity of Being Entangled
Stefano Baiguera, Shira Chapman, Giuseppe Policastro +1
Nielsen's approach to quantum state complexity relates the minimal number of quantum gates required to prepare a state to the length of geodesics computed with a certain norm on th…
Aspects of Non-Relativistic Quantum Field Theories
Stefano Baiguera
Non-relativistic quantum field theory is a framework that describes systems where the velocities are much smaller than the speed of light. A large class of those obey Schrödinger i…
The Cosmological Switchback Effect
Stefano Baiguera, Rotem Berman, Shira Chapman +1
The volume behind the black hole horizon was suggested as a holographic dual for the quantum computational complexity of the boundary state in AdS/CFT. This identification is stron…
Energy Transport for Thick Holographic Branes
Constantin Bachas, Stefano Baiguera, Shira Chapman +2
Universal properties of two-dimensional conformal interfaces are encoded by the flux of energy transmitted and reflected during a scattering process. We develop an innovative metho…
The Panorama of Spin Matrix Theory
Stefano Baiguera, Troels Harmark, Yang Lei
Spin Matrix theory describes near-BPS limits of SYM theory, which enables us to probe finite effects like D-branes and black hole physics. In previous works, we…
Supersymmetric Galilean Electrodynamics
Stefano Baiguera, Lorenzo Cederle, Silvia Penati
In 2+1 dimensions, we propose a renormalizable non-linear sigma model action which describes the supersymmetric generalization of Galilean Electrodynamics. We first…
Conformal Carroll Scalars with Boosts
Stefano Baiguera, Gerben Oling, Watse Sybesma +1
We construct two distinct actions for scalar fields that are invariant under local Carroll boosts and Weyl transformations. Conformal Carroll field theories were recently argued to…
Shape Deformations of Charged Rényi Entropies from Holography
Stefano Baiguera, Lorenzo Bianchi, Shira Chapman +1
Charged and symmetry-resolved Rényi entropies are entanglement measures quantifying the degree of entanglement within different charge sectors of a theory with a conserved global c…
Action complexity in the presence of defects and boundaries
Roberto Auzzi, Stefano Baiguera, Sara Bonansea +1
The holographic complexity of formation for the AdS -sided Randall-Sundrum model and the AdS/BCFT models is logarithmically divergent according to the volume conject…
Spin Matrix Theory in near -BPS corners of super-Yang-Mills
Stefano Baiguera, Troels Harmark, Yang Lei
We consider limits of super-Yang-Mills (SYM) theory that approach BPS bounds. These limits result in non-relativistic theories that describe the effective dynamic…
Volume complexity for the non-supersymmetric Janus AdS geometry
Stefano Baiguera, Sara Bonansea, Kristian Toccacelo
We compute holographic complexity for the non-supersymmetric Janus deformation of AdS according to the volume conjecture. The result is characterized by a power-law ultraviolet…
Volume complexity for Janus geometries
Roberto Auzzi, Stefano Baiguera, Sara Bonansea +2
We investigate the complexity=volume proposal in the case of Janus AdS geometries, both at zero and finite temperature. The leading contribution coming from the Janus interface…
Symmetry structure of the interactions in near-BPS corners of super-Yang-Mills
Stefano Baiguera, Troels Harmark, Yang Lei +1
We consider limits of super-Yang-Mills (SYM) theory that approach BPS bounds. These limits result in non-relativistic near-BPS theories that describe the effectiv…
Geometry of quantum complexity
Roberto Auzzi, Stefano Baiguera, G. Bruno De Luca +3
Computational complexity is a new quantum information concept that may play an important role in holography and in understanding the physics of the black hole interior. We consider…
Nonrelativistic near-BPS corners of super-Yang-Mills with symmetry
Stefano Baiguera, Troels Harmark, Nico Wintergerst
We consider limits of super Yang-Mills (SYM) theory that approach BPS bounds and for which an structure is preserved. The resulting near-BPS theories beco…
Developments in non-relativistic field theory and complexity
Stefano Baiguera
This thesis focuses on two research areas: non-relativistic field theories and complexity. In the first part we review the general classification of the trace anomaly for 2+1 dimen…