Thread by @queenofquanta

This Friday April 16 10:30 CET at @canalUGR | We invite you to an #online #seminar with Laura García Álvarez @l_gar_alv on quantum simulations of fermionic models and continuous-variable quantum computation!

Join at meet.google.com/wmk-nsik-qyz

The seminar is hosted by our Statistical Physics Group at the University of Granada. Follow our Youtube channel here: youtube.com/channel/UCzMYc…

Abstract:
Firstly, I will introduce digital-analog and purely digital methods for quantum simulations of fermionic models. The digital-analog approach provides a higher degree of scalability than purely digital or analog techniques, and it is suitable for

implementing quantum simulations of interacting fermions and bosons in condensed matter, and quantum field theories [1]. Purely digital quantum simulations [2,3,4] are grouped under standard discrete-variable quantum computation, while analog quantum simulators with bosonic

fields can be described with the language of continuous-variable (CV) quantum computation.

The second part of the talk is devoted to analyzing the factors that may yield quantum advantage. In particular, Wigner negativity is known to be a necessary resource for

computational advantage in several quantum-computing architectures, including those based on continuous variables [5,6]. However, it is not a sufficient resource, and it is an open question under which conditions CV circuits displaying Wigner negativity offer the potential for

quantum advantage. I will present large families of circuits that display large Wigner negativity and yet are classically efficiently simulatable [7], although they were not recognized as such by previously available theorems.

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