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Multipolar condensates and multipolar Josephson effects
Wenhui Xu1, Chenwei Lv1, Qi Zhou2,3
1Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA.
Nature Communications
|June 5, 2024
Summary
In strongly correlated systems, suppressed particle motion leads to quantum kinetic dipoles. These dipoles can condense, enabling new dipolar Josephson effects and a hierarchy of multipolar condensates.
Area of Science:
- Condensed matter physics
- Quantum mechanics
- Many-body systems
Background:
- Single-particle dynamics suppression in strongly correlated systems leads to emergent dipole carriers.
- Dipole condensates are a key area for studying fracton phases of matter.
- Previous work suggested unconventional lattice models could host dipole condensates.
Purpose of the Study:
- To investigate the prevalence and properties of dipole condensates in bosonic systems.
- To explore the role of self-proximity effects in dipole condensation.
- To demonstrate the potential for manipulating dipole condensates and achieving dipolar Josephson effects.
Main Methods:
- Theoretical analysis of bosonic systems with suppressed single-particle dynamics.
- Investigation of self-proximity effects driving dipole condensation.
- Exploration of multipolar condensate formation and hierarchy.
Main Results:
- Dipole condensates are shown to prevail in bosonic systems due to self-proximity effects.
- Experimental manipulation of dipole condensate phase and observation of dipolar Josephson effects are enabled.
- A generic mechanism for creating multipolar condensates is identified, forming a hierarchy.
Conclusions:
- Self-proximity effects provide a robust pathway to dipole condensates in bosonic systems.
- Dipolar Josephson effects offer novel quantum phenomena without particle flow.
- The discovered hierarchy of multipolar condensates opens new avenues in macroscopic quantum phenomena research.
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