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Personal profile

Personal Statement

I am a Lecturer in the CNQO group at the Physics Departement.

I am a Chancellor's Fellow and work on the many body problem in quantum physics.

Research Interests


I am interested in the quantum many body problem, how is it possible that the same constituents atoms, when joined together in different scenarios produce such a beautiful and diverse world? This is a consequence of collective emergence a field of study that is relevant to diverse disciplines such as condensed matter physics (think of superconductors), high energy physics (think of quark confinement), quantum information (think of topological quantum computers) and ultimately quantum gravity (think of the emergence of space and time).


Entanglement was originally introduced in the context of the foundation of quantum mechanics, and it encodes the fact that the evolution of a composite system cannot be described as the consequence of the separate evolution of its constituents. Nowadays entanglement provides a unifying framework to quantitatively describe emergence.


Tensor networks provide an ansatz for the wave function of many body systems based on the contraction of a network of small constituent tensors. They can be used both as a numerical tool to compute the low energy states of some interesting Hamiltonian, but they also constitute a completely new theoretical framework where one can develop the theory of many body systems


Alternatively one can try to artificially mimic nature, by experimentally engineer some exotic emerging phenomena using ultra-cold atoms or trapped-ions interacting with light. This allows to implement a hands-on approach on emergence, and observe experimentally emerging phenomena in different context from those in which they physically arise, and thus simulate Nature using quantum building blocks


Gauge symmetry seems to be one of the underlying principles responsible for interactions. Gauge theories provide concrete examples of collective emergence that we still do not completely understand. I work to extend tensor networks and quantum simulations so to be able to apply them to gauge theories.


While we can characterize emergence in a unified way through entanglement, it is very difficult to measure it in experiment, wouldn't it be great to be able to detect exotic emerging phenomena in experiments by measuring the underlying entanglement?

External positions

visiting scientist, ICFO

1 Sep 2015 → …


  • Tensor Networks
  • Quantum phyiscs
  • quantum information
  • Condensed matter
  • Emerging phenomena
  • renormalization group
  • statistical physics
  • quantum field theory
  • quantum simulations

Fingerprint Dive into the research topics where Luca Tagliacozzo is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

gauge theory Physics & Astronomy
Spin Chains Mathematics
tensors Physics & Astronomy
Entanglement Mathematics
entropy Physics & Astronomy
bosons Physics & Astronomy
scaling Physics & Astronomy
Ising model Physics & Astronomy

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects 2017 2020

Shared PhD with ICFO

Tagliacozzo, L.

Institute of Photonic Sciences (The) ICFO


Project: Research - Studentship

Research Output 2006 2019

1 Citation (Scopus)
4 Downloads (Pure)

Nonreciprocal quantum transport at junctions of structured leads

Mascarenhas, E., Damanet, F., Flannigan, S., Tagliacozzo, L., Daley, A. J., Goold, J. & De Vega, I., 19 Jun 2019, In : Physical Review B. 99, 24, 9 p., 245134.

Research output: Contribution to journalArticle

Open Access
Trapped ions
Semiconductor quantum dots
1 Citation (Scopus)

Resonant two-site tunneling dynamics of bosons in a tilted optical superlattice

Buyskikh, A. S., Tagliacozzo, L., Schuricht, D., Hooley, C. A., Pekker, D. & Daley, A. J., 27 Aug 2019, In : Physical Review A. 100, 2, 12 p., 023627.

Research output: Contribution to journalArticle

Open Access
potential gradients
resonant tunneling

Activities 2016 2016

  • 1 Journal peer review
  • 1 Examination
  • 1 Invited talk

Seminar about novel approaches to lattice gauge theories

Luca Tagliacozzo (Invited speaker)
17 Mar 2016

Activity: Talk or presentation typesInvited talk

Nature Physics (Journal)

Luca Tagliacozzo (Peer reviewer)
15 Mar 2016 → …

Activity: Publication peer-review and editorial work typesJournal peer review