Generalized Haldane models on laser-coupling optical lattices

Scientific Reports
Wanli LiuYan Chen

Abstract

We propose two generalized Haldane models on laser-coupling optical lattices. Laser-assisted nearest neighbour tunnelings generate artificial staggered magnetic flux, facilitating the realization of topological nontrivial band structures. As generalizations of Haldane model, these models support topological insulator and semimetal phases featuring high Chern numbers. We show simple rules for computing Chern numbers of our models and display the phase diagrams. Moreover, numerical calculations of energy spectra are in perfect agreement with our theoretical expectations. Our models may serve as two new family members for generalizing Haldane model on optical lattices.

References

Mar 16, 2007·Physical Review Letters·Liang FuE J Mele
Jun 4, 2008·Physical Review Letters·S RaghuShou-Cheng Zhang
Nov 13, 2008·Physical Review Letters·Congjun Wu
Jun 13, 2009·Physical Review Letters·Xiao-Liang QiShou-Cheng Zhang
Apr 7, 2010·Physical Review Letters·Maxim DzeroPiers Coleman
Apr 7, 2010·Physical Review Letters·Jacob LinderNaoto Nagaosa
Apr 8, 2011·Physical Review Letters·Liang Fu
Oct 27, 2011·Physical Review Letters·A A Burkov, Leon Balents
Mar 10, 2012·Physical Review Letters·Pavan HosurAshvin Vishwanath
May 1, 2012·Physical Review Letters·Sho NakosaiNaoto Nagaosa
Oct 23, 2012·Physical Review Letters·Philipp HaukeAndré Eckardt
May 21, 2013·Physical Review Letters·N Y YaoM D Lukin
Jul 31, 2013·Physical Review Letters·M M Vazifeh, M Franz
Oct 15, 2013·Physical Review Letters·Alexandre Dauphin, Nathan Goldman
Mar 4, 2014·Physical Review Letters·A CeliM Lewenstein
Nov 26, 2014·Reports on Progress in Physics·N GoldmanI B Spielman
Jan 6, 2015·Nature·Sebastian KrinnerTilman Esslinger
Jun 6, 2015·Physical Review Letters·Y X Zhao, Z D Wang

❮ Previous
Next ❯

Software Mentioned

mathrm

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.