SubsidieMeestersEmergence in Quantum Physics
The project aims to experimentally investigate emergence in quantum systems using ultra-cold atoms, verifying models from microscopic to macroscopic scales and exploring their applications in quantum simulation.
Projectdetails
Introduction
Emergence is central to our understanding of the world. It addresses the question of how a seemingly unlimited diversity emerges from a small number of simple constituents. Ultimately, emergence in physics is related to an inaccessibility of knowledge about the microscopic world, out of which new phenomena are formed at a larger scale. In quantum physics, the Renormalization Group is a prominent example relating microscopic physics to emerging new phenomena.
Research Objectives
The main thrust in the research proposed here is to experimentally study in full detail emergence in the quantum world, all the way from the microscopic physics of elementary (atomic) constituents to a hierarchy of effective models at large scales. A central objective will be to:
- Verify emerging models.
- Probe the limits of their validity.
- Investigate when they break down.
- Determine how big a system has to be to show emergent phenomena.
Methodology
Ultra-cold atoms allow us to implement and study complex, interacting quantum many-body systems in detail. Powerful manipulation techniques, combined with the ability to measure each atom with close to unit efficiency, offer an unprecedented way to probe the whole path of emergence from micro- to macro-physics.
Examples of Emergence
We will investigate three examples of emergence:
- Emergence of quantum field theories as illustrated by the sine-Gordon model.
- Emergence of universality as the system forgets its initial conditions in the course of non-equilibrium evolution.
- Emergence of a hydrodynamic description in the non-equilibrium evolution of correlated quantum systems.
Applications
We envision robust, verified emergent models to have numerous applications as quantum simulators, ranging from solid-state physics to aspects of physical systems that are inaccessible for direct experiments. Moreover, emergence, coming from the inaccessibility of knowledge about the microscopic world, may ultimately lead to a natural bridge between quantum and classical.
Financiële details & Tijdlijn
Financiële details
| Subsidiebedrag | € 2.500.000 |
| Totale projectbegroting | € 2.500.000 |
Tijdlijn
| Startdatum | 1-10-2023 |
| Einddatum | 30-9-2028 |
| Subsidiejaar | 2023 |
Partners & Locaties
Projectpartners
- TECHNISCHE UNIVERSITAET WIENpenvoerder
Land(en)
Vergelijkbare projecten binnen European Research Council
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Emergence in quantum materials: from relativistic quantum criticality to non-Fermi liquids and unconventional superconductivity
QuantEmerge aims to understand and control non Fermi liquid phases in quantum materials by connecting them to relativistic quantum criticality and moiré materials, enhancing future quantum technology design.
Statistical mechanics of quantum measurement and quantum entanglement
This project aims to develop a comprehensive theory of measurement-induced criticality and dynamical phases in nonunitary quantum systems, leveraging advancements in quantum simulation and computation.
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This project aims to develop a phenomenological theory of ergodicity breaking phase transitions in quantum systems, linking universal and nonuniversal properties to quantum chaos and critical behavior.
Hydrodynamics and entropy production in low-dimensional quantum systems
This project aims to enhance understanding of non-equilibrium dynamics in many-body quantum systems by developing new theoretical tools and frameworks to relate quantum and classical phenomena.
Quantum Ergodicity: Stability and Transitions
Develop methods to analyze and manipulate quantum ergodicity in many-body systems, aiming to understand stability and transitions for broad applications in physics.