6533b828fe1ef96bd1288ea9
RESEARCH PRODUCT
Incommensurate phases of a bosonic two-leg ladder under a flux
Edmond OrignacM. Di DioMaria Luisa ChiofaloRoberta CitroS. De Palosubject
Quantum phase transitionBosonizationBosonisation[PHYS.COND.GAS]Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas]IncommensurationsFOS: Physical sciencesGeneral Physics and Astronomychamps de jauge artificiels01 natural sciences010305 fluids & plasmasPhysics and Astronomy (all)Condensed Matter - Strongly Correlated ElectronsCorrelation functionGauge fieldsCondensed Matter::Superconductivity0103 physical sciencesBosonizationtranstion commensurable-incommensurable010306 general physicsCommensurate-Incommensurate transitions[PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]BosonPhysicsCondensed Matter::Quantum GasesStrongly Correlated Electrons (cond-mat.str-el)Condensed matter physicsartificial gauge fieldsDensity matrix renormalization groupGauge fields; Incommensurations; Meissner to vortex transition; Physics and Astronomy (all)Vortex stateMagnetic fluxVortexQuantum gases. Strongly coupled many-particle systems. Reduced dimensionality.Quantum Gases (cond-mat.quant-gas)Meissner to vortex transitionCondensed Matter::Strongly Correlated ElectronsCondensed Matter - Quantum GasesQuantum gases. Strongly coupled many-particle systems. Reduced dimensionalitydescription
A boson two--leg ladder in the presence of a synthetic magnetic flux is investigated by means of bosonization techniques and Density Matrix Renormalization Group (DMRG). We follow the quantum phase transition from the commensurate Meissner to the incommensurate vortex phase with increasing flux at different fillings. When the applied flux is $\rho \pi$ and close to it, where $\rho$ is the filling per rung, we find a second incommensuration in the vortex state that affects physical observables such as the momentum distribution, the rung-rung correlation function and the spin-spin and charge-charge static structure factors.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-05-27 |