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Exotic Phases and Phase Transitions in Quantum Systems

English title Exotic Phases and Phase Transitions in Quantum Systems
Applicant Troyer Matthias
Number 116634
Funding scheme Project funding (Div. I-III)
Research institution Institut für Theoretische Physik ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Theoretical Physics
Start/End 01.04.2007 - 31.03.2009
Approved amount 296'556.00
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Keywords (7)

computational physics; condensed matter physics; statistical physics; Monte Carlo simulations; quantum phase transitions; supersolid; computer simulations of quantum systems

Lay Summary (English)

Lead
Lay summary
In this project we develop new simulation algorithms for quantum systems and use them to investigate the unusual properties of exotic quantum states and phase transitions between them. As one prominent example I want to highlight the "supersolid" phase, which is a conjectured unusual quantum state that is at the same time solid and superfluid (a frictionless liquid). While the phases "solid" and "liquid" seem to be exclusive, a quantum system can potentially be both at the same time and form a supersolid. Using computer simulations we can investigate whether, for example, solid Helium forms such a supersolid state, or look for other systems in which a supersolid could appear. Other exotic phases we will investigate are deconfined quantum phase transitions, and exotic phases with anyonic excitations.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
107561 Unconventional Phases and Phase Transitions in Quantum Lattice Models 01.04.2005 Project funding (Div. I-III)
124538 Simulation of Novel Phases in Correlated Quantum Systems 01.04.2009 Project funding (Div. I-III)
124538 Simulation of Novel Phases in Correlated Quantum Systems 01.04.2009 Project funding (Div. I-III)

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