Controlling the Effective Hamiltonian of a Driven Quantum Superconducting Circuit
暫譯: 控制驅動量子超導電路的有效哈密頓量
Venkatraman, Jayameenakshi
相關主題
商品描述
The thesis illustrates, with a remarkable combination of theoretical analysis and experimental investigation, how the static Hamiltonian of an oscillator with both 3rd and 4th order non-linearity can morph into a profoundly different Hamiltonian under the influence of an oscillating driving force. In a classical system, such transformation would not be considered a novelty, but the author demonstrates that the new Hamiltonian can possess an exotic symmetry with surprising new quantum properties that one would never anticipate from the original Hamiltonian, with no classical equivalent. The root cause of these unexpected properties is a subtle interference effect, which is only possible in a quantum context. Carefully crafted control experiments ensure that measured data are compared with theoretical predictions with no adjustable parameters. Instrumental in this comparison is a new diagrammatic theory developed by the author.
商品描述(中文翻譯)
這篇論文以理論分析與實驗研究的卓越結合，說明了具有第三和第四階非線性的振盪器的靜態哈密頓量如何在振盪驅動力的影響下轉變為一個截然不同的哈密頓量。在經典系統中，這種轉變不會被視為新穎之處，但作者證明了新的哈密頓量可以擁有一種奇特的對稱性，並展現出驚人的新量子性質，這些性質是從原始哈密頓量中無法預見的，且沒有經典的對應物。這些意想不到的性質的根本原因是一種微妙的干涉效應，這只有在量子背景下才能實現。精心設計的控制實驗確保測量數據與理論預測進行比較時沒有可調參數。這一比較中，作者發展的一種新的圖示理論起到了關鍵作用。
作者簡介
Jaya, originally from Bengaluru, India, earned her Bachelor's degree in Physics from IIT Kanpur in 2016. Her introduction to quantum optics came during her undergraduate research on fast resonator reset with Alexandre Blais at Université de Sherbrooke. In 2023, she completed her Ph.D. under Michel Devoret at Yale University, where she developed experimental and theoretical tools to control superconducting circuits subjected to microwave drives for bosonic codes and continuous-variable quantum computation. In Fall 2024, she began a postdoctoral position at UCSB with Ania, focusing on enhancing quantum control of solid-state spins for quantum sensing of condensed matter systems. Outside of Physics, Jaya enjoys running, meditating, and exploring nature. She is also trained in Carnatic music and Bharatanatyam and delights in dabbling with these art forms.
作者簡介(中文翻譯)
Jaya，來自印度班加羅爾，於2016年在印度理工學院坎普爾校區獲得物理學學士學位。她在舍布魯克大學與Alexandre Blais合作進行本科研究時，首次接觸到量子光學，研究主題為快速共振腔重置。2023年，她在耶魯大學在Michel Devoret的指導下完成博士學位，期間她開發了實驗和理論工具，以控制受微波驅動的超導電路，應用於玻色碼和連續變量量子計算。2024年秋季，她在加州大學聖巴巴拉分校（UCSB）開始擔任博士後研究員，與Ania合作，專注於增強固態自旋的量子控制，以進行凝聚態系統的量子感測。在物理學之外，Jaya喜歡跑步、冥想和探索自然。她還接受過卡納提克音樂和巴拉塔納提亞姆舞蹈的訓練，並樂於嘗試這些藝術形式。
