36 citations · 67 across the 18 of their papers we have counts for
18 papers
Emergence of Resonating Valence-Bond Correlations in Stretched Graphene
Sam Azadi, A. Principi, T. D. Kühne +1
Electronic correlations in graphene are generally considered weak due to the large bandwidth of its electrons. Here we show that tensile expansion of the honeycomb lattice prov…
Valley-Controlled Viscosity of Two-Dimensional Dirac Fluids
Alexey Ermakov, Alessandro Principi
Motivated by recent experiments in weakly hybridized small-angle twisted bilayer graphene, we investigate how valley imbalance affects the viscosity of two-dimensional Dirac fluids…
Operator Space Transport and the Emergence of Boundary Time Crystals
Dominik Nemeth, Ahsan Nazir, Robert-Jan Slager +1
Boundary time crystals (BTCs) are prominent examples of continuous time crystals in collective spin systems governed by Lindbladian evolution. To date, their analysis has mostly re…
Anomalous thermoelectric Hall response of interacting 2D Dirac fermions
A. Daria Dumitriu-I., Feng Liu, Alexander E. Kazantsev +1
We study the anomalous thermoelectric Hall response of two-dimensional massive Dirac fermions to first order in the electron-electron interaction. We compute both the Nernst respon…
The role of polarization field terms in a model for a cavity quantum material
Arwen Lloyd, Adam Stokes, Alessandro Principi +1
Constructing models for cavity quantum materials requires a careful treatment of the light-matter coupling. In general, one must specify matrix elements constructed from the materi…
Topological Boundary Time Crystal Oscillations
Dominik Nemeth, Ahsan Nazir, Alessandro Principi +1
Boundary time crystals (BTCs) break time-translation symmetry and exhibit long-lived, robust oscillations insensitive to initial conditions. We show that collective spin BTCs can a…
Electronic-Entropy-Driven Solid-Solid Phase Transitions in Elemental Metals
S. Azadi, S. M. Vinko, A. Principi +2
We compute the thermodynamic phase diagram of seventeen elemental metals with hexagonal close-packed (hcp), face-centered cubic (fcc), and body-centered cubic (bcc) crystal structu…
Resonating valence bond pairing energy in graphene by quantum Monte Carlo
S. Azadi, A. Principi, T. D. Kühne +1
We determine the resonating-valence-bond (RVB) state in graphene using real-space quantum Monte Carlo with correlated variational wave functions. Variational and diffusion quantum…
A new scale anomaly in Dirac matter
Matteo Baggioli, Maxim N. Chernodub, Karl Landsteiner +2
The dynamics of Dirac semimetals is modeled at low energies by the massless Dirac Hamiltonian with the Fermi velocity replacing the velocity of light. The classical action is scale…
Quantum Monte Carlo study of the quasiparticle effective mass of the two-dimensional uniform electron liquid
S. Azadi, N. D. Drummond, A. Principi +2
The real-space variation quantum Monte Carlo (VMC) and diffusion quantum Monte Carlo (DMC) are used to calculate the quasiparticle energy bands and the quasiparticle effective mass…
Quantum Monte Carlo description of correlated electrons in two-dimensional FeSe
S. Azadi, A. Principi, R. V. Belosludov +2
An interesting question in physics is how the correlation energy of atoms evolves upon forming a solid. Here, we address this problem for a specific case of double-layer FeSe. We u…
Spin and Charge Transport Mediated by Fractionalized Excitations
Alexey Ermakov, Alessandro Principi
We study charge and spin transport in systems composed of itinerant electrons and localized magnetic moments of a Kitaev quantum spin liquid (QSL) phase. For example, $α-{\rm RuCl}…
Multiphase superconductivity in PdBi2
Lewis Powell, Wenjun Kuang, Gabriel Hawkins-Pottier +13
Unconventional superconductivity, where electron pairing does not involve electron-phonon interactions, is often attributed to magnetic correlations in a material. Well known examp…
Hot Electron-Driven Structural Expansion and Magnetic Collapse in Bilayer FeSe
Sam Azadi, A. Principi, M. S. Bahramy
Quantum phenomena emerging from the interaction of light and matter in low-dimensional systems hold great potential for future quantum technologies. Here, using first-principles ca…
Broken Lorentz symmetry and violation of the Wiedemann-Franz law in topological insulators
Feng Liu, A. Daria Dumitriu-I., Alessandro Principi
We study a two-dimensional topological insulator in the presence of a static non-uniform gravitational field, which mimics the variations in the temperature distribution. We derive…
Extreme electron-hole drag and negative mobility in the Dirac plasma of graphene
L. A. Ponomarenko, Alessandro Principi, A. D. Niblett +13
Coulomb drag between adjacent electron and hole gases has attracted considerable attention, being studied in various two-dimensional systems, including semiconductor and graphene h…
No bulk thermal currents in massive Dirac fermions
Feng Liu, A. Daria Dumitriu-I., Alessandro Principi
We calculate the energy current flowing in the bulk of a (2+1)-dimensional system of massive Dirac fermions and along a (1+1)-dimensional domain wall generated by flipping the sign…
Localised Thermal Emission from Topological Interfaces
M. Said Ergoktas, Ali Kecebas, Konstantinos Despotelis +7
The control of thermal radiation by shaping its spatial and spectral emission characteristics plays a key role in many areas of science and engineering. Conventional approaches to…