A quantum dot in germanium proximitized by a superconductor

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Lazar Lakic, William I. L. Lawrie, David van Driel, Lucas E. A. Stehouwer, Yao Su | Summary: Planar germanium quantum wells have recently been shown to host hard-gapped superconductivity. Additionally, quantum dot spin qubits in germanium are well-suited for quantum information processing, with isotopic purification to a […]


Continue.. A quantum dot in germanium proximitized by a superconductor

Performance of Superconducting Resonators Suspended on SiN Membranes

Kavli Affiliate: Feng Wang | First 5 Authors: Trevor Chistolini, Kyunghoon Lee, Archan Banerjee, Mohammed Alghadeer, Christian Jünger | Summary: Correlated errors in superconducting circuits due to nonequilibrium quasiparticles are a notable concern in efforts to achieve fault tolerant quantum computing. The propagation of quasiparticles causing these correlated errors can potentially be mediated by phonons […]


Continue.. Performance of Superconducting Resonators Suspended on SiN Membranes

Dynamical Freezing in Exactly Solvable Models of Driven Chaotic Quantum Dots

Kavli Affiliate: Debanjan Chowdhury | First 5 Authors: Haoyu Guo, Rohit Mukherjee, Debanjan Chowdhury, , | Summary: The late-time equilibrium behavior of generic interacting models is determined by the coupled hydrodynamic equations associated with the globally conserved quantities. In the presence of an external time-dependent drive, non-integrable systems typically thermalize to an effectively infinite-temperature state, […]


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Excitation-Dependent Features and Artifacts in 2-D Terahertz Spectroscopy

Kavli Affiliate: Ankit Disa | First 5 Authors: Albert Liu, Ankit Disa, , , | Summary: Recently, two-dimensional terahertz spectroscopy (2DTS) has attracted increasing attention for studying complex solids. A number of recent studies have applied 2DTS either with long pulses or away from any material resonances, situations that yield unconventional 2DTS spectra that are […]


Continue.. Excitation-Dependent Features and Artifacts in 2-D Terahertz Spectroscopy

Excitation-Dependent Features and Artifacts in 2-D Terahertz Spectroscopy

Kavli Affiliate: Ankit Disa | First 5 Authors: Albert Liu, Ankit Disa, , , | Summary: Recently, two-dimensional terahertz spectroscopy (2DTS) has attracted increasing attention for studying complex solids. A number of recent studies have applied 2DTS either with long pulses or away from any material resonances, situations that yield unconventional 2DTS spectra that are […]


Continue.. Excitation-Dependent Features and Artifacts in 2-D Terahertz Spectroscopy

Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Kavli Affiliate: David T. Limmer | First 5 Authors: Leonardo Coello Escalante, David T. Limmer, , , | Summary: Using molecular simulation and continuum dielectric theory, we consider how electrochemical kinetics are modulated as a function of twist angle in bilayer graphene electrodes. By establishing an effective connection between twist angle and the screening length […]


Continue.. Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Kavli Affiliate: David T. Limmer | First 5 Authors: Leonardo Coello Escalante, David T. Limmer, , , | Summary: Using molecular simulation and continuum dielectric theory, we consider how electrochemical kinetics are modulated as a function of twist angle in bilayer graphene electrodes. By establishing an effective connection between twist angle and the screening length […]


Continue.. Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Kavli Affiliate: David T. Limmer | First 5 Authors: Leonardo Coello Escalante, David T. Limmer, , , | Summary: Using molecular simulation and continuum dielectric theory, we consider how electrochemical kinetics are modulated by twist angle in bilayer graphene electrodes. By establishing a connection between twist angle and the screening length of charge carriers within […]


Continue.. Microscopic origin of twist-dependent electron transfer rate in bilayer graphene

Electronic and Optical Excitations in van der Waals Materials from a Non-Empirical Wannier-Localized Optimally-Tuned Screened Range-Separated Hybrid Functional

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: María Camarasa-Gómez, Stephen E. Gant, Guy Ohad, Jeffrey B. Neaton, Ashwin Ramasubramanian | Summary: Accurate prediction of electronic and optical excitations in van der Waals (vdW) materials is a long-standing challenge for density functional theory. The recently proposed Wannier-localized optimally-tuned screened range-separated hybrid (WOT-SRSH) functional has […]


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Colloidal dispersions of sterically and electrostatically stabilized PbS quantum dots: the effect of stabilization mechanism on structure factors, second virial coefficients, and film-forming properties

Kavli Affiliate: Naomi S. Ginsberg | First 5 Authors: Ahhyun Jeong, Josh Portner, Christian P. N. Tanner, Justin C. Ondry, Chenkun Zhou | Summary: Electrostatically stabilized nanocrystals (NCs) and, in particular, quantum dots (QDs) hold promise for forming strongly coupled superlattices due to their compact and electronically conductive surface ligands. However, studies on the colloidal […]


Continue.. Colloidal dispersions of sterically and electrostatically stabilized PbS quantum dots: the effect of stabilization mechanism on structure factors, second virial coefficients, and film-forming properties