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Quantum Computation Route to Magnetic Phase Discovery
Online Presentations | 19 Jan 2024 | Contributor(s):: Arnab Banerjee
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Quantum Sensing with Spin Qubits in 2D and 1D Materials
Online Presentations | 07 Dec 2023 | Contributor(s):: Tongcang Li
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From Qiskit Metal to Direct-Write Lithography
Downloads | 03 Jul 2023 | Contributor(s):: Onri Jay Benally
This tutorial covers the use of Qiskit Metal tools in Python to generate design layouts of quantum devices, proceeded by direct-write lithography exposure. The example provided below was performed on electron-beam lithography equipment (EBPG series) from Raith Nanofabrication to...
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Superconducting Qubits, Hybrid Devices, and Circuit Architectures
Online Presentations | 08 Sep 2022 | Contributor(s):: Ramya Suresh
Superconducting circuits are a popular platform for quantum computing and simulations, demonstrating several advantages such as improved coherence and robustness compared to trapped-ion, NV center, or ultracold-atom technologies. Custom circuits can be easily designed to mimic the physics of...
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Full-Wave Modeling of Microwave Frequency Single Photon Sources
Online Presentations | 08 Jul 2021 | Contributor(s):: Thomas Roth
In this talk, we present preliminary results on how fully classical computational electromagnetics methods can be leveraged to more fully characterize the performance of single photon sources. To make the development more concrete, we specifically focus on modeling a microwave frequency single...
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Onri Jay Benally
Leader of a quantum hardware team, quantum hardware engineer, IBM quantum administrator/ developer, carpenter from the countryside in northern Arizona.
https://nanohub.org/members/300251
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Kirkman’s Schoolgirls and Quantum Spin Pairs: A 175 Year Long Thread Through Mathematics and Physics
Online Presentations | 15 Oct 2019 | Contributor(s):: A. Ravi. P. Rau
A recreational puzzle posed 175 years ago of 15 schoolgirls to walk three abreast to school for seven days of the week so that no girl sees a friend repeated in her row has links to many areas of mathematics: combinatorics, finite projective geometries, design and coding theory, etc.
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Entanglement, Discord and Other Quantum Correlations
Online Presentations | 15 Oct 2019 | Contributor(s):: A. Ravi. P. Rau
We will discuss states and operators of two (or more) qubits, and higher dimensional "qudits," from the symmetry groups and algebras pertaining to them. The study of the time evolution of such systems can gain much from the insights and techniques provided by such considerations,...
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Quantum Algorithmic Breakeven: on Scaling Up with Noisy Qubits
Online Presentations | 21 Aug 2019 | Contributor(s):: Daniel Lidar
In this talk I will argue in favor of a different criterion I call "quantum algorithmic breakeven," which focuses on demonstrating an algorithmic scaling improvement in an error-corrected setting over the uncorrected setting. I will present evidence that current experiments with...
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Engineering a Superconducting Quantum Computer
Online Presentations | 30 Jun 2019 | Contributor(s):: Zijun "Jimmy" Chen
In this talk, I will discuss Google’s efforts to tackle these challenges and engineer a large scale quantum processor. I will also show our latest results on achieving high fidelity single and two qubit operations on these devices, and discuss the prospects for achieving quantum supremacy.
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Spin Quantum Gate Lab
Tools | 26 Apr 2019 | Contributor(s):: Tong Wu, Qimao Yang, Daniel Volya, Jing Guo
Simulate the device-level characteristics of spin-based quantum gates.
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Manipulating Strongly Interacting Individual Quanta: Photon Molecules and 51 Atomic Qubits
Online Presentations | 26 Mar 2019 | Contributor(s):: Vladan Vuletic
I will discuss two applications: By coherently coupling light to Rydberg excitations in a dense atomic medium, we have realized a highly nonlinear optical medium where the interactions between individual photons are so strong that two photons can even form a bound state.
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Quantum Control Over Diamond Spins with a Mechanical Resonator
Online Presentations | 24 Jan 2018 | Contributor(s):: Gregory David Fuchs
I will describe our experiments to coherently couple NV center spins to gigahertz-frequency mechanical resonators using crystal lattice strain. In high-quality diamond mechanical resonators, we demonstrate coherent Rabi oscillations of NV center spins driven by mechanical motion instead of an...
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Valley Dependent g-factors in Silicon: Role of Spin-Orbit and Micromagnets
Online Presentations | 13 Dec 2016 | Contributor(s):: Rajib Rahman
In this talk I will show that spin splittings in silicon quantum dots are inherently valley-dependent. Interface disorder, such as monoatomic steps, can strongly affect the intrinsic spin-orbit coupling and can cause device-to-device variations in g-factors. I will also describe the anisotropy of...
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Coupling of Quantum Emitters to Localized and Propagating Plasmons
Online Presentations | 13 Oct 2016 | Contributor(s):: Sergey I. Bozhevolnyi
In this talk, I review our latest theoretical and experimental results concerning QE coupling to localized and propagating SP modes. In particular, influence of gap SP resonators on the decay rate of closely located QEs and different decay contributions are discussed as well as the dynamics of...
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Atomistic Modeling of Nano Devices: From Qubits to Transistors
Online Presentations | 13 Apr 2016 | Contributor(s):: Rajib Rahman
In this talk, I will describe such a framework that can capture complex interactions ranging from exchange and spin-orbit-valley coupling in spin qubits to non-equilibrium charge transport in tunneling transistors. I will show how atomistic full configuration interaction calculations of exchange...
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Progress in Superconducting Qubits
Online Presentations | 04 May 2015 | Contributor(s):: Robert F. McDermott
I will review progress in the field, with a focus on recent work in Wisconsin in the areas of decoherence and quantum measurement. I will discuss efforts to identify and suppress the dominant source of qubit dephasing, and I will describe a new approach to scalable, high-fidelity qubit...
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Quantum Dot Quantum Computation Simulator
Tools | 04 Aug 2012 | Contributor(s):: Brian Sutton
Performs simulations of quantum dot quantum computation using a model Hamiltonian with an on-site magnetic field and modulated inter-dot exchange interaction.