125 citations · 1.1k across the 53 of their papers we have counts for
10 papers · 1 filter
Observation of magnetic quantum phase crossovers in a semiconductor spin ladder
Elizaveta Morozova, Xin Zhang, Utso Bhattacharya +9
Understanding collective phases of strongly correlated quantum magnets relies on theoretically tractable model systems with precise microscopic control. Antiferromagnetic spin ladd…
Topological phase detection through high-harmonic spectroscopy in extended Su-Schrieffer-Heeger chains
Mohit Lal Bera, Jessica O. de Almeida, Marlena Dziurawiec +5
Su-Schrieffer-Heeger (SSH) chains are paradigmatic examples of 1D topological insulators hosting zero-energy edge modes when the bulk of the system has a non-zero topological windi…
Detecting Majorana Zero Modes via Strong Field Dynamics
Niccolò Baldelli, Utso Bhattacharya, Daniel González-Cuadra +2
We propose a protocol to detect topological phase transitions of one-dimensional -wave superconductors from their harmonic emission spectrum in strong fields. Specifically, we i…
Tracing non-Abelian anyons via impurity particles
Niccolò Baldelli, Bruno Juliá-Díaz, Utso Bhattacharya +2
Non-Abelian excitations are an interesting feature of many fractional quantum Hall phases, including those phases described by the Moore-Read (or Pfaffian) wave function. However,…
Topological properties of the long-range Kitaev chain with Aubry-André-Harper modulation
Joana Fraxanet, Utso Bhattacharya, Tobias Grass +3
We present a detailed study of the topological properties of the Kitaev chain with long-range pairing terms and in the presence of an Aubry-André-Harper on-site potential. Specific…
Fermionic Chern insulator from twisted light with linear polarization
Utso Bhattacharya, Swati Chaudhary, Tobias Grass +3
The breaking of time-reversal symmetry is a crucial ingredient to topological bands. It can occur intrisically in materials with magnetic order, or be induced by external fields, s…