13 citations · 38 across the 17 of their papers we have counts for
17 papers
Thermally melted quadrupolar order and intrinsically quantum phases in 5 double perovskites
Rong Cong, Ginevra Corsale, Ilija K. Nikolov +3
Spin-orbit-coupled double perovskites exhibit a rich interplay of spin, orbital, and quadrupolar degrees of freedom (DOF), giving rise to competing magnetic and multipolar ph…
Crossover from Fast Scrambling to Operator Confinement Tuned by an Auxiliary Qubit
Ryan Buechele, Joseph Szabo, Nandini Trivedi
We demonstrate a static, disorder-free spin chain Hamiltonian which, by tuning the coupling to an auxiliary qubit, realizes a crossover between super-ballistic, ancilla-accelerated…
The nature of the "pseudogap" in the insulating phase of highly disordered superconductors
Mark Nikolaevsky, Abhisek Samanta, Nandini Trivedi +1
Disordered thin films undergoing a superconductor-insulator transition provide a controlled setting for studying pseudogap physics in the absence of competing electronic orders. Al…
Van Hove singularity-driven giant Nernst signal in twisted double bilayer graphene
Ujjal Roy, Monosij Roy, Unmesh Ghorai +8
Twisted graphene layers host van Hove singularities (vHSs), peaks in the electronic density of states, thought to drive exotic phases in moiré materials, but their effect on therma…
Finite temperature precursors of Mottness in the Fermi Hubbard model
Sayantan Roy, Abhisek Samanta, Nandini Trivedi
We investigate finite-temperature precursors of Mottness in the repulsive Hubbard model above the spin-ordering temperature, using numerically exact determinant quantum Monte Carlo…
Tunable Chaos in the Finite Mean SYK Model
Arkaprava Mukherjee, Sumilan Banerjee, Sandip P. Trivedi +1
The complex Sachdev-Ye-Kitaev (SYK) model, featuring fermions with all-to-all interactions, serves as a dual paradigm for understanding non-Fermi liquid behavior and the holographi…
Long-range phase coherence and phase patterns in hybrid Josephson junction arrays
Xi Wang, Asbjørn C. C. Drachmann, Candice Thomas +5
The coherence of superconductivity and its suppression near a quantum phase transition is governed by the interplay between local pairing and macroscopic phase coherence. Using sca…
Magnetic field induced phenomena in Kitaev spin liquids
Shi Feng, Nandini Trivedi
Quantum spin liquids (QSLs) host a variety of fractionalized particles. In Kitaev's paradigmatic honeycomb model a spin- fractionalizes into flux due to emergen…
Strain Response as a Probe of Spinons in Quantum Spin Liquids
Penghao Zhu, Archisman Panigrahi, Leonid Levitov +1
Quantum spin liquids (QSLs) host emergent, fractionalized fermionic excitations that are charge-neutral. Identifying clear experimental signatures of these excitations remains a ce…
Detection of anyon braiding through pump-probe spectroscopy
Xu Yang, Ryan Buechele, Nandini Trivedi
We show that the braiding of anyons in a quantum spin liquid leaves a distinct dynamical signature in the nonlinear pump-probe response. Using a combination of exact diagonalizatio…
Partial Wavefunction Collapse Under Repeated Weak Measurement of a non-Conserved Observable
Carter Swift, Nandini Trivedi
Two hallmarks of quantum non-demolition (QND) measurement are the ensemble-level conservation of the expectation value of the measured observable and the eventual, inevitable c…
Sign changes of the thermoelectric transport coefficient across the metal-insulator crossover in the doped Fermi Hubbard model
Sayantan Roy, Abhisek Samanta, Nandini Trivedi
We investigate the doping-dependence of the Seebeck coefficient, as calculated from the Kelvin formula, for the Fermi Hubbard model using determinantal quantum Monte Carlo simulati…
Spin-orbit coupling controlled two-dimensional magnetism in chromium trihalides
Inhee Lee, Jiefu Cen, Oleksandr Molchanov +7
CrX (X = Cl, Br, I) have the same crystal structure and Hamiltonian but different ligand spin-orbit coupling (SOC) constant , providing excellent material platform explori…
Emergent quantum Majorana metal from a chiral spin liquid
Penghao Zhu, Shi Feng, Kang Wang +2
We propose a mechanism to explain the emergence of an intermediate gapless spin liquid phase in the antiferromagnetic Kitaev model in an externally applied magnetic field, sandwich…
Signatures of metal to insulator crossover in the repulsive Fermi Hubbard model through static correlations
Sayantan Roy, Sameed Pervaiz, Thereza Paiva +1
Cold atom systems provide a rich platform to realize strongly interacting condensed matter systems, and recent progress in fluorescence imaging technique has enabled identification…
Fractionalization Signatures in the Dynamics of Quantum Spin Liquids
Kang Wang, Shi Feng, Penghao Zhu +4
We investigate the signatures of fractionalization in quantum spin liquids by studying different phases of the Kitaev honeycomb model in the presence of an out-of-plane magnetic fi…
Thermopower probing emergent local moments in magic-angle twisted bilayer graphene
Ayan Ghosh, Souvik Chakraborty, Ranit Dutta +7
Recent experiments on magic-angle twisted bilayer graphene (MATBLG) have revealed the formation of flatbands, suggesting that correlation effects are likely to dominate in this sys…