Jacopo Surace
YOU?
Author Swipe
View article: On whether quantum theory needs complex numbers: the foil theories perspective
On whether quantum theory needs complex numbers: the foil theories perspective Open
Recent work by Renou et al. (2021) has led to some controversy concerning the question of whether quantum theory requires complex numbers for its formulation. We promote the view that the main result of that work is best understood not as …
View article: A Theory of Inaccessible Information
A Theory of Inaccessible Information Open
What would be the consequences if there were fundamental limits to our ability to experimentally explore the world? In this work we seriously consider this question. We assume the existence of statements whose truth value is not experiment…
View article: Symmetry-induced failures of tomographic locality: Constructing foil theories by twirling
Symmetry-induced failures of tomographic locality: Constructing foil theories by twirling Open
Tomographic locality is a principle commonly used in the program of finding axioms that pick out quantum theory within the landscape of possible theories. The principle asserts the sufficiency of local measurements for achieving a tomograp…
View article: Certifying Ground-State Properties of Many-Body Systems
Certifying Ground-State Properties of Many-Body Systems Open
A ubiquitous problem in quantum physics is to understand the ground-state properties of many-body systems. Confronted with the fact that exact diagonalization quickly becomes impossible when increasing the system size, variational approach…
View article: Physicality of evolution and statistical contractivity are equivalent notions of maps
Physicality of evolution and statistical contractivity are equivalent notions of maps Open
Statistical quantifiers are generically required to contract under physical evolutions, following the intuition that information should be lost under noisy transformations. This principle is very relevant in statistics, and it even allows …
View article: Certifying ground-state properties of quantum many-body systems
Certifying ground-state properties of quantum many-body systems Open
A ubiquitous problem in quantum physics is to understand the ground-state properties of many-body systems. Confronted with the fact that exact diagonalisation quickly becomes impossible when increasing the system size, variational approach…
View article: Characterizing (non-)Markovianity through Fisher information
Characterizing (non-)Markovianity through Fisher information Open
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian. Non-Markovian effects are studied by monitoring how information quantifiers, such as t…
View article: A Theory of Inaccessible Information
A Theory of Inaccessible Information Open
What would be the consequences if there were fundamental limits to our ability to experimentally explore the world? In this work we seriously consider this question. We assume the existence of statements whose truth value is not experiment…
View article: Quantum Fisher Information and its dynamical nature
Quantum Fisher Information and its dynamical nature Open
The importance of the quantum Fisher information metric is testified by the number of applications that this has in very different fields, ranging from hypothesis testing to metrology, passing through thermodynamics. Still, from the rich r…
View article: State retrieval beyond Bayes' retrodiction
State retrieval beyond Bayes' retrodiction Open
In the context of irreversible dynamics, associating to a physical process its intuitive reverse can result to be a quite ambiguous task. It is a standard choice to define the reverse process using Bayes' theorem, but, in general, thi…
View article: Report on 2204.04072v4
Report on 2204.04072v4 Open
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian.Non-Markovian effects are studied by monitoring how information quantifiers, such as th…
View article: Report on scipost_202207_00020v1
Report on scipost_202207_00020v1 Open
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian.Non-Markovian effects are studied by monitoring how information quantifiers, such as th…
View article: Report on scipost_202207_00020v1
Report on scipost_202207_00020v1 Open
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian.Non-Markovian effects are studied by monitoring how information quantifiers, such as th…
View article: Fermionic Gaussian states: an introduction to numerical approaches
Fermionic Gaussian states: an introduction to numerical approaches Open
This document is meant to be a practical introduction to the analytical and numerical manipulation of fermionic Gaussian systems. Starting from the basics, we move to relevant modern results and techniques, presenting numerical examples an…
View article: Quenches to the critical point of the three-state Potts model: Matrix product state simulations and conformal field theory
Quenches to the critical point of the three-state Potts model: Matrix product state simulations and conformal field theory Open
Conformal field theories (CFTs) have been used extensively to understand the physics of critical lattice models at equilibrium. However, the applicability of CFT calculations to the behavior of the lattice systems in the out-of-equilibrium…
View article: Report on 2111.08343v2
Report on 2111.08343v2 Open
This document is meant to be a practical introduction to the analytical and numerical manipulation of fermionic Gaussian systems.Starting from the basics, we move to relevant modern results and techniques, presenting numerical examples and…
View article: Characterizing (non-)Markovianity through Fisher Information
Characterizing (non-)Markovianity through Fisher Information Open
A non-isolated physical system typically loses information to its environment, and when such loss is irreversible the evolution is said to be Markovian. Non-Markovian effects are studied by monitoring how information quantifiers, such as t…
View article: Report on 2111.08343v1
Report on 2111.08343v1 Open
This document is meant to be a practical introduction to the analytical and numerical manipulation of Fermionic Gaussian systems.Starting from the basics, we move to relevant modern results and techniques, presenting numerical examples and…
View article: Report on 2111.08343v1
Report on 2111.08343v1 Open
This document is meant to be a practical introduction to the analytical and numerical manipulation of Fermionic Gaussian systems.Starting from the basics, we move to relevant modern results and techniques, presenting numerical examples and…
View article: State retrieval beyond Bayes' retrodiction
State retrieval beyond Bayes' retrodiction Open
In the context of irreversible dynamics, associating to a physical process its intuitive reverse can result to be a quite ambiguous task. It is a standard choice to define the reverse process using Bayes' theorem, but, in general, this cho…
View article: Fermionic Gaussian states: an introduction to numerical approaches
Fermionic Gaussian states: an introduction to numerical approaches Open
This document is meant to be a practical introduction to the analytical and numerical manipulation of Fermionic Gaussian systems. Starting from the basics, we move to relevant modern results and techniques, presenting numerical examples an…
View article: On quenches to the critical point of the three states Potts model -- Matrix Product State simulations and CFT
On quenches to the critical point of the three states Potts model -- Matrix Product State simulations and CFT Open
Conformal Field Theories (CFTs) have been used extensively to understand the physics of critical lattice models at equilibrium. However, the applicability of CFT calculations to the behavior of the lattice systems in the out-of-equilibrium…
View article: Undecidability in resource theory: can you tell theories apart?
Undecidability in resource theory: can you tell theories apart? Open
A central question in resource theory is whether one can construct a set of monotones that completely characterise the allowed transitions dictated by a set of free operations. A similar question is whether two distinct sets of free operat…
View article: Operator content of entanglement spectra in the transverse field Ising chain after global quenches
Operator content of entanglement spectra in the transverse field Ising chain after global quenches Open
We consider the time evolution of the gaps of the entanglement spectrum for a block of consecutive sites in finite transverse field Ising chains after sudden quenches of the magnetic field. We provide numerical evidence that, whenever we q…
View article: Simulating the out-of-equilibrium dynamics of local observables by trading entanglement for mixture
Simulating the out-of-equilibrium dynamics of local observables by trading entanglement for mixture Open
The fact that the computational cost of simulating a many-body quantum system\non a computer increases with the amount of entanglement has been considered as\nthe major bottleneck for simulating its out-of-equilibrium dynamics. Some\naspec…