Antonio Štrkalj
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View article: A resonant valence bond spin liquid in the dilute limit of doped frustrated Mott insulators
A resonant valence bond spin liquid in the dilute limit of doped frustrated Mott insulators Open
Ideas about resonant valence bond liquids and spin–charge separation have led to key concepts in physics such as quantum spin liquids, emergent gauge symmetries, topological order and fractionalization. Despite extensive efforts to demonst…
View article: Aharonov-Bohm interferometer in inverted-band <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="italic">pn</mml:mi></mml:mrow></mml:math> junctions
Aharonov-Bohm interferometer in inverted-band junctions Open
Inverted-band pn junctions in two-dimensional materials offer a promising platform for electron optics in condensed matter, as they allow to manipulate and guide electron beams without the need for spatial confinement. In this work, we pro…
View article: Reentrant localization transitions and anomalous spectral properties in off-diagonal quasiperiodic systems
Reentrant localization transitions and anomalous spectral properties in off-diagonal quasiperiodic systems Open
We investigate the localization properties of quasiperiodic tight-binding chains with hopping terms modulated by the interpolating Aubry-André-Fibonacci (IAAF) function. This off-diagonal IAAF model allows for a smooth and controllable int…
View article: Aharonov-Bohm interferometer in inverted-band pn junctions
Aharonov-Bohm interferometer in inverted-band pn junctions Open
Inverted-band $pn$ junctions in two-dimensional materials offer a promising platform for electron optics in condensed matter, as they allow to manipulate and guide electron beams without the need for spatial confinement. In this work, we p…
View article: Reentrant localisation transitions and anomalous spectral properties in off-diagonal quasiperiodic systems
Reentrant localisation transitions and anomalous spectral properties in off-diagonal quasiperiodic systems Open
We investigate the localisation properties of quasiperiodic tight-binding chains with hopping terms modulated by the interpolating Aubry-André-Fibonacci (IAAF) function. This off-diagonal IAAF model allows for a smooth and controllable int…
View article: Tomasch Oscillations as Above-Gap Signature of Topological Superconductivity
Tomasch Oscillations as Above-Gap Signature of Topological Superconductivity Open
The identification of topological superconductors usually involves searching for in-gap modes that are protected by topology. However, in current experimental settings, the smoking-gun evidence of these in-gap modes is still lacking. In th…
View article: Electron-optics using negative refraction in two-dimensional inverted-band $pn$ junctions
Electron-optics using negative refraction in two-dimensional inverted-band $pn$ junctions Open
Electron optics deals with condensed matter platforms for manipulating and guiding electron beams with high efficiency and robustness. Common devices rely on the spatial confinement of the electrons into one-dimensional channels. Recently,…
View article: Tomasch Oscillations as Above-Gap Signature of Topological Superconductivity
Tomasch Oscillations as Above-Gap Signature of Topological Superconductivity Open
The identification of topological superconductors usually involves searching for in-gap modes that are protected by topology. However, in the current experimental settings, the smoking-gun evidence of these in-gap modes is still lacking. I…
View article: Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems
Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems Open
Quasiperiodic behavior is mostly known to occur in systems with enforced quasiperiodicity or randomness, in either the lattice structure or the potential, as well as in periodically driven systems. Here, we present instead a rarer setting …
View article: Coexistence of localization and transport in many-body two-dimensional Aubry-André models
Coexistence of localization and transport in many-body two-dimensional Aubry-André models Open
Whether disordered and quasiperiodic many-body quantum systems host a long-lived localized phase in the thermodynamic limit has been the subject of intense recent debate. While in one dimension, substantial evidence for such a many-body lo…
View article: Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems
Emergence of quasiperiodic behavior in transport and hybridization properties of clean lattice systems Open
Quasiperiodic behaviour is known to occur in systems with enforced quasiperiodicity or randomness, in either the lattice structure or the potential, as well as in periodically driven systems. Here, we present instead a setting where quasip…
View article: Coexistence of localization and transport in many-body two-dimensional Aubry-André models
Coexistence of localization and transport in many-body two-dimensional Aubry-André models Open
Whether disordered and quasiperiodic many-body quantum systems host a long-lived localized phase in the thermodynamic limit has been the subject of intense recent debate. While in one dimension substantial evidence for the existence of suc…
View article: Many-body localization in the interpolating Aubry-André-Fibonacci model
Many-body localization in the interpolating Aubry-André-Fibonacci model Open
We investigate the localization properties of a spin chain with an\nantiferromagnetic nearest-neighbour coupling, subject to an external\nquasiperiodic on-site magnetic field. The quasiperiodic modulation interpolates\nbetween two paradigm…
View article: Luttinger liquid coupled to Ohmic-class environments
Luttinger liquid coupled to Ohmic-class environments Open
We investigate the impact of an Ohmic-class environment on the conduction and\ncorrelation properties of one-dimensional interacting systems. Interestingly,\nwe reveal that inter-particle interactions can be engineered by the\nenvironment'…
View article: Luttinger liquid coupled to Ohmic-class environments
Luttinger liquid coupled to Ohmic-class environments Open
We investigate the impact of an Ohmic-class environment on the conduction and correlation properties of one-dimensional interacting systems. Interestingly, we reveal that interparticle interactions can be engineered by the environment's no…
View article: Many-body localization in the interpolating Aubry-André-Fibonacci model
Many-body localization in the interpolating Aubry-André-Fibonacci model Open
We investigate the localization properties of a spin chain with an antiferromagnetic nearest-neighbor coupling, subject to an external quasiperiodic on-site magnetic field. The quasiperiodic modulation interpolates between two paradigmatic…
View article: An impurity in a Luttinger Liquid coupled to Ohmic-class environments
An impurity in a Luttinger Liquid coupled to Ohmic-class environments Open
We investigate the impact of noisy environments on transport through a one dimensional interacting quantum wire containing a scattering impurity. The impurity is known to induce a metal-insulator quantum phase transition as a function of t…
View article: Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer
Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer Open
Electron optics in the solid state promises new functionality in electronics through the possibility of realizing nano- and micrometer-sized interferometers, lenses, collimators, and beam splitters that manipulate electrons instead of ligh…
View article: Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer
Electron-Hole Interference in an Inverted-Band Semiconductor Bilayer Open
Electron optics in the solid state promises new functionality in electronics through the possibility of realizing nano- and micrometer-sized interferometers, lenses, collimators, and beam splitters that manipulate electrons instead of ligh…
View article: Tunneling into a Finite Luttinger Liquid Coupled to Noisy Capacitive Leads
Tunneling into a Finite Luttinger Liquid Coupled to Noisy Capacitive Leads Open
Tunneling spectroscopy of one-dimensional interacting wires can be profoundly sensitive to the boundary conditions of the wire. Here, we analyze the tunneling spectroscopy of a wire coupled to capacitive metallic leads. Strikingly, with in…