3 papers
cond-mat.str-el2026
Sound attenuation and velocity shift in antiferromagnetic spin-1/2 chains
Edmond Orignac, Emeric Caprani, Roberta Citro
We investigate ultrasound attenuation and sound velocity shift in antiferromagnetic spin-1/2 XXZ chains in magnetic field. We relate the sound velocity shift to derivatives of the…
cond-mat.quant-gas2025
One dimensional Bose-Hubbard model with long range hopping
Edmond Orignac
Interacting one-dimensional bosons with long range hopping decaying as a power law with distance are considered with the renormalization group and the self-consistent…
cond-mat.str-el2025
Platforms for the realization and characterization of Tomonaga-Luttinger liquids
Isabelle Bouchoule, Roberta Citro, Tim Duty +5
The concept of a Tomonaga-Luttinger liquid (TLL) has been established as a fundamental theory for the understanding of one-dimensional quantum systems. Originally formulated as a r…