304 citations · 810 across the 19 of their papers we have counts for
19 papers
Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
Yao Lu, Tianpu Zhao, André Vallières +13
Time-dependent electromagnetic drives are fundamental for controlling complex quantum systems, including superconducting Josephson circuits. In these devices, accurate time-depende…
Exceeding the Parametric Drive Strength Threshold in Nonlinear Circuits
Mingkang Xia, Cristóbal Lledó, Matthew Capocci +7
Superconducting quantum circuits rely on strong drives to implement fast gates, high-fidelity readout, and state stabilization. However, these drives can induce uncontrolled excita…
Local imaging of diamagnetism in proximity coupled niobium nano-island arrays on gold thin films
Logan Bishop-Van Horn, Irene P. Zhang, Emily N. Waite +9
In this work we study the effect of engineered disorder on the local magnetic response of proximity coupled superconducting island arrays by comparing scanning Superconducting Quan…
Computer-aided quantization and numerical analysis of superconducting circuits
Sai Pavan Chitta, Tianpu Zhao, Ziwen Huang +2
The development of new superconducting circuits and the improvement of existing ones rely on the accurate modeling of spectral properties which are key to achieving the needed adva…
The fate of quantum many-body scars in the presence of disorder
Ian Mondragon-Shem, Maxim G. Vavilov, Ivar Martin
Experiments performed on strongly interacting Rydberg atoms have revealed surprising persistent oscillations of local observables. These oscillations have been attributed to a spec…
Robust topological invariants of topological crystalline phases in the presence of impurities
Ian Mondragon-Shem, Taylor L. Hughes
Topological crystalline phases (TCPs) are topological states protected by spatial symmetries. A broad range of TCPs have been conventionally studied by formulating topological inva…
Quantized frequency-domain polarization of driven phases of matter
Ian Mondragon-Shem, Ivar Martin, A. Alexandradinata +1
Periodically driven quantum systems can realize novel phases of matter that do not exist in static settings. We study signatures of these drive-induced phases on the -dimens…
Observation of domain wall motion in a polycrystalline vortex lattice
Malcolm Durkin, Ian Mondragon-Shem, Taylor L. Hughes +1
We present measurements showing how disorder determines the dynamics of a vortex lattice. Using superconductor-normal-superconductor (SNS) arrays placed in finite magnetic fields,…
Imaging and controlling vortex dynamics in mesoscopic superconductor-normal-metal-superconductor arrays
Tyler Naibert, Hryhoriy Polshyn, Rita Garrido-Menacho +7
Harnessing the properties of vortices in superconductors is crucial for fundamental science and technological applications; thus, it has been an ongoing goal to locally probe and c…
History-dependent dissipative vortex dynamics in superconducting arrays
Malcolm Durkin, Ian Mondragon-Shem, Serena Eley +2
We perform current(I)-voltage(V) measurements on low resistance superconductor-normal-superconductor arrays in finite magnetic fields, focusing on the dilute vortex population regi…
Many-body mobility edge due to symmetry-constrained dynamics and strong interactions
Ian Mondragon-Shem, Arijeet Pal, Taylor L. Hughes +1
We provide numerical evidence combined with an analytical understanding of the many-body mobility edge for the strongly anisotropic spin-1/2 XXZ model in a random magnetic field. T…
Entanglement of a 3D generalization of the Kitaev model on the diamond lattice
Ian Mondragon-Shem, Taylor L. Hughes
We study the entanglement properties of a three dimensional generalization of the Kitaev honeycomb model proposed by Ryu [Phys. Rev. B 79, 075124, (2009)]. The entanglement entropy…
Signatures of metal-insulator and topological phase transitions in the entanglement of one-dimensional disordered fermions
Ian Mondragon-Shem, Taylor L. Hughes
We study one-dimensional disordered fermions that either undergo metal-insulator transitions or topological phase transitions to become trivial Anderson insulators. We focus on usi…
Topological Criticality in the Chiral-Symmetric AIII Class at Strong Disorder
Ian Mondragon-Shem, Juntao Song, Taylor L. Hughes +1
The chiral AIII symmetry class in the periodic table of topological insulators contains topological phases classified by a winding number for each odd space-dimension. An open…
Characterizing disordered fermion systems using the momentum-space entanglement spectrum
Ian Mondragon-Shem, Mayukh Khan, Taylor L. Hughes
The use of quantum entanglement to study condensed matter systems has been flourishing in critical systems and topological phases. Additionally, using real-space entanglement entro…
Coulomb matrix elements of bilayers of confined charge carriers with arbitrary spatial separation
Ian Mondragon-Shem, Francisco E. Lopez, Boris A. Rodriguez
We describe a practical procedure to calculate the Coulomb matrix elements of 2D spatially separated and confined charge carriers, which are needed for detailed theoretical descrip…
Ultracold atoms in optical lattices induced by photonic crystals
Angela M. Barragan, Ian Mondragon-Shem, Herbert Vinck-Posada
We propose a way of generating optical lattices embedded in photonic crystals. By setting up extended modes in photonic crystals, ultracold atoms can be mounted in different types…
Coulomb correlations of a few body system of spatially separated charges
Ian Mondragon-Shem, Francisco E. Lopez, Boris A. Rodriguez
A Hartree-Fock and Hartree-Fock-Bogoliubov study of a few body system of spatially separated charge carriers was carried out. Using these variational states, we compute an approxim…
Unconventional Bose-Einstein condensations from spin-orbit coupling
Congjun Wu, Ian Mondragon-Shem, Xiang-Fa Zhou
According to the "no-node" theorem, many-body ground state wavefunctions of conventional Bose-Einstein condensations (BEC) are positive-definite, thus time-reversal symmetry cannot…