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Creating and Stabilizing Quantum Resource Phases of Interacting Quantum Matter: The Equilibrium and Nonequilibrium Routes

Project description

Creating and stabilising quantum correlations and coherences

Quantum technologies rely on the exploitation of quantum resources. Among the most important of these are quantum coherence arising from quantum superposition and quantum correlations, including but not limited to, quantum entanglement. With the support of the Marie Skłodowska-Curie Actions programme, the CondmatQTech project will use many-body states, both in and out of equilibrium, to develop an approach for creating and protecting quantum correlations and coherences. The project intends to create connected families of resourceful states and connect these to various stable phases of quantum matter, particularly stabilised non-equilibrium coherent quantum matter. This will link the stability and creation of the phases to that of the underlying resources.

Objective

We propose a program for creating and protecting quantum correlations and coherences responsible for the supremacy of quantum technologies, by identifying their optimal embodiment in many-body states of quantum matter in and out of equilibrium. Our vision is to connect various stable phases of quantum matter, especially the non-equilibrium ones, with perturbatively connected families of resourceful states, and thus tie the stability and creation of those phases with those of the resources. Our concrete formulation is based on physics insights of the symmetry, localization property, and dynamics of many-body systems under coherent external drive.

For state creation, we will employ quantum annealing based protocols combined with our understanding of quantum phase
transitions between simple phases (e.g. ferromagnetic) and those with useful correlations like long-range entanglement (e.g. spin liquids). The approach promises to evade notorious classical barriers. For example, the “sign problems” in simulating highly frustrated ground states without disorder can be bypassed by our protocol. For protecting delicate quantum states, we propose a novel approach of combining dynamical stability owing to the suppression of many-body chaos by a periodic drive and Many-Body Localization.

Our program will facilitate and expedite the advent of quantum technologies which are expected to revolutionize every aspect of human life and society. On the fundamental side, the project will uncover new territories in the field of quantum condensed matter, especially that stabilized out-of-equilibrium. This will initiate new research perspective to the field of theoretical many-body physics, and endow the nascent field of non-equilibrium coherent quantum matter with a direct technological (and hence economic) relevance.

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Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2022-PF-01

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Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Net EU contribution
€ 211 754,88
Address
RUE MICHEL ANGE 3
75794 Paris
France
Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
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Total cost
No data

Partners (1)