797 citations · 1.9k across the 27 of their papers we have counts for
27 papers
Topologically Protected Edge States in One-Dimensional Quantum Walks
Emily Maxey, Jacob Mansfield, Beth Thacker +1
Topological insulators host protected boundary states that are robust to disorder, making them attractive for applications and motivating their realization in engineered systems. D…
Identifying quantum coherence in quantum annealers
Connor Aronoff, Travis Howard, David Nicholaeff +2
Demonstrating genuine many-body quantum coherence in large-scale quantum processors remains a central challenge for near-term quantum technologies. Recent experiments on D-Wave qua…
Measurement of Many-Body Quantum Correlations in Superconducting Circuits
Kamal Sharma, Wade DeGottardi
Recent advances in superconducting circuit technology have made the fabrication of large, customizable circuits routine. This has led to their application to areas beyond quantum i…
A One-Dimensional Electron Gas Coupled to Light
Victor Bradley, Kamal Sharma, Mohammad Hafezi +1
The prospect of using light to probe or manipulate quantum materials has become an active area of interest. Here, we investigate a quantum wire -- treated as a finite-sized one-dim…
Vernier Spectrum and Isospin State Control in Carbon Nanotube Quantum Dots
Jameson Berg, Neda Lotfizadeh, Dublin Nichols +4
Commensurability phenomena abound in nature and are typically associated with mismatched lengths, as can occur in quasiperiodic systems. However, not all commensuration effects are…
Viscous dissipation in a gas of one-dimensional fermions with generic dispersion
Wade DeGottardi, K. A. Matveev
A well-known feature of the classical monoatomic gas is that its bulk viscosity is strongly suppressed because the single-particle dispersion is quadratic. On the other hand, in co…
Variational tight-binding method for simulating large superconducting circuits
D. K. Weiss, Wade DeGottardi, Jens Koch +1
We generalize solid-state tight-binding techniques for the spectral analysis of large superconducting circuits. We find that tight-binding states can be better suited for approxima…
Viscous Properties of a Degenerate One-Dimensional Fermi Gas
Wade DeGottardi, K. A. Matveev
We study the viscous properties of a system of weakly interacting spin- fermions in one dimension. Accounting for the effect of interactions on the quasiparticle energ…
Fast, Lifetime-Preserving Readout for High-Coherence Quantum Annealers
Jeffrey A. Grover, James I. Basham, Alexander Marakov +15
We demonstrate, for the first time, that a quantum flux parametron (QFP) is capable of acting as both isolator and amplifier in the readout circuit of a capacitively shunted flux q…
Equilibration of Quasi-One-Dimensional Fermi Gases
Wade DeGottardi, K. A. Matveev
One-dimensional systems often possess multiple channels or bands arising from the excitation of transverse degrees of freedom. In the present work, we study the specific processes…
Photon pair condensation by engineered dissipation
Ze-Pei Cian, Guanyu Zhu, Su-Kuan Chu +4
Dissipation can usually induce detrimental decoherence in a quantum system. However, engineered dissipation can be used to prepare and stabilize coherent quantum many-body states.…
Thermal radiation as a probe of one-dimensional electron liquids
Wade DeGottardi, Michael J. Gullans, Suraj Hedge +2
Motivated by recent developments in the field of plasmonics, we develop the theory of radiation from one-dimensional electron liquids, showing that the spectrum of thermal radiatio…
Topological phases, edge modes, and the Hofstadter butterfly in coupled Su-Schrieffer-Heeger systems
Karmela Padavić, Suraj S Hegde, Wade DeGottardi +1
Motivated by recent experimental realizations of topological edge states in Su-Schrieffer-Heeger (SSH) chains, we theoretically study a ladder system whose legs are comprised of tw…
A topological quantum optics interface
Sabyasachi Barik, Aziz Karasahin, Chris Flower +5
The application of topology in optics has led to a new paradigm in developing photonic devices with robust properties against disorder. Although significant progress on topological…
Thermal management and non-reciprocal control of phonon flow via optomechanics
Alireza Seif, Wade DeGottardi, Keivan Esfarjani +1
Engineering phonon transport in physical systems is a subject of interest in the study of materials and plays a crucial role in controlling energy and heat transfer. Of particular…
Viscosity of a Multi-channel One-Dimensional Fermi Gas
Wade DeGottardi, K. A. Matveev
Many one-dimensional systems of experimental interest possess multiple bands arising from shallow confining potentials. In this work, we study a gas of weakly interacting fermions…
Stability of Fractional Quantum Hall States in Disordered Photonic Systems
Wade DeGottardi, Mohammad Hafezi
The possibility of realizing fractional quantum Hall liquids in photonic systems has attracted a great deal of interest of late. Unlike electronic systems, interactions in photonic…
Two-Dimensionally Confined Topological Edge States in Photonic Crystals
Sabyasachi Barik, Hirokazu Miyake, Wade DeGottardi +2
We present an all-dielectric photonic crystal structure that supports two-dimensionally confined helical topological edge states. The topological properties of the system are contr…
Electrical and Thermal Transport in Inhomogeneous Luttinger Liquids
Wade DeGottardi, K. A. Matveev
We study the transport properties of long quantum wires by generalizing the Luttinger liquid approach to allow for the finite lifetime of the bosonic excitations. Our theory accoun…
Topological Insulating Phases of Non-Abelian Anyonic Chains
Wade DeGottardi
Boundary conformal field theory is brought to bear on the study of topological insulating phases of non-abelian anyonic chains. These topologically non-trivial phases display prote…
Majorana Fermions in superconducting wires: effects of long-range hopping, broken time-reversal symmetry and potential landscapes
Wade DeGottardi, Manisha Thakurathi, Smitha Vishveshwara +1
We present a comprehensive study of two of the most experimentally relevant extensions of Kitaev's spinless model of a 1D p-wave superconductor: those involving (i) longer range ho…
Majorana Fermions in superconducting 1D systems having periodic, quasiperiodic, and disordered potentials
Wade DeGottardi, Diptiman Sen, Smitha Vishveshwara
We present a unified study of the effect of periodic, quasiperiodic and disordered potentials on topological phases that are characterized by Majorana end modes in 1D p-wave superc…
Charge Fractionalization in a Mesoscopic Ring
Wade DeGottardi, Siddhartha Lal, Smitha Vishveshwara
We study the fractionalization of an electron tunneling into a strongly interacting electronic one-dimensional ring. As a complement to transport measurements in quantum wires conn…
Quenching across quantum critical points in periodic systems: dependence of scaling laws on periodicity
Manisha Thakurathi, Wade DeGottardi, Diptiman Sen +1
We study the quenching dynamics of a many-body system in one dimension described by a Hamiltonian that has spatial periodicity. Specifically, we consider a spin-1/2 chain with equa…