Controlling and probing non-abelian emergent gauge potentials in spinor Bose-Fermi mixtures

Nature Communications
Nguyen Thanh PhucMasahito Ueda

Abstract

Gauge fields, typified by the electromagnetic field, often appear as emergent phenomena due to geometrical properties of a curved Hilbert subspace, and provide a key mechanism for understanding such exotic phenomena as the anomalous and topological Hall effects. Non-abelian gauge potentials serve as a source of non-singular magnetic monopoles. Here we show that unlike conventional solid materials, the non-abelianness of emergent gauge potentials in spinor Bose-Fermi atomic mixtures can be continuously varied by changing the relative particle-number densities of bosons and fermions. The non-abelian feature is captured by an explicit dependence of the measurable spin current density of fermions in the mixture on the variable coupling constant. Spinor mixtures also provide us with a method to coherently and spontaneously generate a pure spin current without relying on the spin Hall effect. Such a spin current is expected to have potential applications in the new generation of atomtronic devices.

References

Jul 1, 1988·Physical Review A: General Physics·A Zee
Mar 3, 1986·Physical Review Letters·J MoodyF Wilczek
Jan 15, 1990·Physical Review Letters·B Zygelman
Feb 17, 1992·Physical Review Letters·A Stern
Apr 3, 2001·Science·A G TruscottR G Hulet
Aug 9, 2003·Science·Shuichi MurakamiShou-Cheng Zhang
Apr 20, 2004·Physical Review Letters·Jairo SinovaA H MacDonald
Nov 13, 2004·Science·Y K KatoD D Awschalom
Aug 11, 2005·Physical Review Letters·J RuseckasM Fleischhauer
Aug 11, 2005·Physical Review Letters·J M HigbieD M Stamper-Kurn
Aug 11, 2005·Physical Review Letters·Hosho KatsuraAlexander V Balatsky
Oct 4, 2005·Physical Review Letters·M KenzelmannJ W Lynn
Dec 31, 2005·Physical Review Letters·C SilberC Zimmermann
Feb 7, 2007·Physical Review Letters·Shi-Liang ZhuL-M Duan
Mar 16, 2007·Physical Review Letters·Xiong-Jun LiuC H Oh
May 16, 2007·Physical Review Letters·Y YamasakiY Tokura
Jun 4, 2008·Physical Review Letters·M VengalattoreD M Stamper-Kurn
Jul 23, 2008·Physical Review Letters·Jeremy J ThornDaniel A Steck
Mar 5, 2009·Physical Review Letters·Ville Pietilä, Mikko Möttönen
May 14, 2009·Physical Review Letters·J Y VaishnavGediminas Juzelŭnas
Jun 13, 2009·Physical Review Letters·Minhyea LeeN P Ong
Jun 13, 2009·Physical Review Letters·A NeubauerP Böni
Apr 24, 2012·Nature Materials·Tomas JungwirthKamil Olejník
Jun 7, 2013·Nature·M C BeelerI B Spielman

❮ Previous
Next ❯

Citations

Dec 30, 2017·Physical Review Letters·E YakaboyluM Lemeshko

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.