87 citations · 1.3k across the 76 of their papers we have counts for
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Optical pumping of electronic quantum Hall states with vortex light
Deric Session, Mahmoud Jalali Mehrabad, Nikil Paithankar +13
A fundamental requirement for quantum technologies is the ability to coherently control the interaction between electrons and photons. However, in many scenarios involving the inte…
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…
Chiral transport of hot carriers in graphene in the quantum Hall regime
Bin Cao, Tobias Grass, Olivier Gazzano +12
Photocurrent (PC) measurements can reveal the relaxation dynamics of photo-excited hot carriers beyond the linear response of conventional transport experiments, a regime important…
Optical flux pump in the quantum Hall regime
Bin Cao, Tobias Grass, Glenn Solomon +1
A seminal gedankenexperiment by Laughlin describes the charge transport in quantum Hall systems via the pumping of flux. Here, we propose an optical scheme which probes and manipul…
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…
Fractional angular momentum and anyon statistics of impurities in Laughlin liquids
Tobias Graß, Bruno Juliá-Díaz, Niccolò Baldelli +2
The elementary excitations of a fractional quantum Hall liquid are quasiparticles or quasiholes which are neither bosons nor fermions, but so-called anyons. Here we study impurity…
Observation of chiral photocurrent transport in the quantum Hall regime in graphene
Olivier Gazzano, Bin Cao, Jiuning Hu +6
Optical excitation provides a powerful tool to investigate non-equilibrium physics in quantum Hall systems. Moreover, the length scale associated with photo-excited charge carries…