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DANIEL SÁNCHEZ PEACHAM
DANIEL SÁNCHEZ PEACHAM

2020-01-31
CHRISTOS CHARALAMBOUS
CHRISTOS CHARALAMBOUS

2020-02-06
SERGIO LUCIO DE BONIS
SERGIO LUCIO DE BONIS

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JULIO SANZ SÁNCHEZ
JULIO SANZ SÁNCHEZ

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SANDRA DE VEGA
SANDRA DE VEGA

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ESTHER GELLINGS
ESTHER GELLINGS

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NICOLA DI PALO
NICOLA DI PALO

2020-03-30
ANGELO PIGA
ANGELO PIGA

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PABLO GOMEZ GARCIA
PABLO GOMEZ GARCIA

2020-06-04
ANUJA ARUN PADHEY
ANUJA ARUN PADHEY

2020-06-08
VIKAS REMESH
VIKAS REMESH

2020-06-23
DAVID ALCARAZ
DAVID ALCARAZ

2020-06-30
GERARD PLANES
GERARD PLANES

2020-07-09
IRENE ALDA
IRENE ALDA

2020-07-13
EMANUELE TIRRITO
EMANUELE TIRRITO

2020-07-16
ALBERT ALOY
ALBERT ALOY

2020-07-27
MARIA SANZ-PAZ
MARIA SANZ-PAZ

2020-07-28
JUAN MIGUEL PÉREZ ROSAS
JUAN MIGUEL PÉREZ ROSAS

2020-10-08
ZAHRA RAISSI
ZAHRA RAISSI

2020-10-30
IVAN BORDACCHINI
IVAN BORDACCHINI

2020-11-09
GORKA MUÑOZ GIL
GORKA MUÑOZ GIL

2020-11-17
ZAHRA KHANIAN
ZAHRA KHANIAN

2020-11-27
PAMINA WINKLER
PAMINA WINKLER
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2020-12-02
BIPLOB NANDY
BIPLOB NANDY
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2020-12-11
DANIEL GONZÁLEZ CUADRA
DANIEL GONZÁLEZ CUADRA
Investigations of Topological Phases for Quasi-1D Systems


Emanuele Tirrito
July 13th, 2020
EMANUELE TIRRITO
Quantum Optics Theory
ICFO-The Institute of Photonic Sciences
For a long time, quantum states of matter have been successfully characterized by the Ginzburg-Landau formalism that was able to classify all different types of phase transitions. This view changed with the discovery of the quantum Hall effect and topological insulators. The latter are materials that host metallic edge states in an insulating bulk, some of which are protected by the existing symmetries.
Complementary to the search of topological phases in condensed matter, great efforts have been made in quantum simulations based on coldatomic gases. Sophisticated laser schemes provide optical lattices with different geometries and allow to tune interactions and the realization of artificial gauge fields. At the same time, new concepts coming from quantum information, based on entanglement, are pushing the frontier of our understanding of quantum phases as a whole.
The concept of entanglement has revolutionized the description of quantum many-body states by describing wave functions with tensor networks (TN) that are exploited for numerical simulations based on the variational principle.
This thesis falls within the frame work of the studies in condensed matter physics: it focuses indeed on the so-called synthetic realization of quantum states of matter, more specifically,of topological ones, which may have on the long-run out falls towards robust quantum computers. We propose a theoretical investigation of cold atoms in optical lattice pierced by effective (magnetic) gauge fields and subjected to experimentally relevant interactions, by adding a modern numerical approach based on TN algorithms. More specifically, this work will focus on (i) interacting topological phases in quasi-1D systems and, in particular, the Creutz-Hubbard model, (ii) the connection between condensed matter and high energy physics studying the Gross-Neveu model and the discretization of Wilson-Hubbard model, (iii) implementing tensor network-based algorithms.
July 13, 2020, 11:00. Online
Thesis Advisor: Prof Dr Maciej Lewenstein
Thesis Co-advisor: Prof Alejandro Bermúdez
ICFO-The Institute of Photonic Sciences
For a long time, quantum states of matter have been successfully characterized by the Ginzburg-Landau formalism that was able to classify all different types of phase transitions. This view changed with the discovery of the quantum Hall effect and topological insulators. The latter are materials that host metallic edge states in an insulating bulk, some of which are protected by the existing symmetries.
Complementary to the search of topological phases in condensed matter, great efforts have been made in quantum simulations based on coldatomic gases. Sophisticated laser schemes provide optical lattices with different geometries and allow to tune interactions and the realization of artificial gauge fields. At the same time, new concepts coming from quantum information, based on entanglement, are pushing the frontier of our understanding of quantum phases as a whole.
The concept of entanglement has revolutionized the description of quantum many-body states by describing wave functions with tensor networks (TN) that are exploited for numerical simulations based on the variational principle.
This thesis falls within the frame work of the studies in condensed matter physics: it focuses indeed on the so-called synthetic realization of quantum states of matter, more specifically,of topological ones, which may have on the long-run out falls towards robust quantum computers. We propose a theoretical investigation of cold atoms in optical lattice pierced by effective (magnetic) gauge fields and subjected to experimentally relevant interactions, by adding a modern numerical approach based on TN algorithms. More specifically, this work will focus on (i) interacting topological phases in quasi-1D systems and, in particular, the Creutz-Hubbard model, (ii) the connection between condensed matter and high energy physics studying the Gross-Neveu model and the discretization of Wilson-Hubbard model, (iii) implementing tensor network-based algorithms.
July 13, 2020, 11:00. Online
Thesis Advisor: Prof Dr Maciej Lewenstein
Thesis Co-advisor: Prof Alejandro Bermúdez