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UID:UW-Physics-Event-8981
DTSTART:20241118T160000Z
DTEND:20241118T180000Z
DTSTAMP:20260413T184627Z
LAST-MODIFIED:20241024T175404Z
LOCATION:B343\, Sterling Hall\; https://uwmadison.zoom.us/j/9987462932
 2
SUMMARY:Quantum Computing with Superconductor-Semiconductor Hybrid Sys
 tems\, Thesis Defense\, Benjamin Harpt\, Physics PhD Graduate Student
DESCRIPTION:Quantum computers offer the potential to solve problems be
 yond the reach of classical computers by harnessing fundamentally diff
 erent physics. Today\, researchers worldwide are racing to develop qua
 ntum computers that are both controllable and scalable\, utilizing a w
 ide range of hardware approaches to encode quantum information. Superc
 onducting circuits and semiconductor quantum dots are\, individually\,
  two of the leading qubit platforms for building solid-state quantum p
 rocessors\; combining the strengths of both materials in hybrid device
 s opens up new possibilities for quantum computing architectures. This
  dissertation explores key aspects of superconductor-semiconductor hyb
 rid systems for quantum computing\, and is structured in three parts. 
 Part I presents an in-depth overview of silicon quantum-dot qubits\, w
 ith a focus on experiments investigating crosstalk between exchange-on
 ly spin qubits. Part II addresses the integration of these qubits with
  superconducting resonators for readout and long-range entanglement. U
 sing a quantum-dot device coupled to a vertically integrated resonator
 \, we demonstrate an unconventional electron-photon interaction mechan
 ism and show how it can be utilized for qubit readout and spectroscopy
 . Finally\, Part III examines superconductor-semiconductor hybrid junc
 tions and their qubit applications\, detailing the development of supe
 rconducting alloys tailored for germanium-based hybrid devices. Togeth
 er\, these findings advance our understanding and introduce new techni
 ques for developing hybrid quantum technologies.
URL:https://www.physics.wisc.edu/events/?id=8981
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