海森堡自旋链在无限温度下的磁化动力学
量子物理
2024-04-08 v2
摘要
理解量子动力学的普适方面是统计力学中一个未解决的问题。特别地，基于无限温度自旋-自旋关联函数的标度，一维海森堡模型的自旋动力学被推测属于 Kardar-Parisi-Zhang（KPZ）普适类。在一个由 46 个超导量子比特组成的链中，我们研究了跨越链中心转移的磁化强度 的概率分布 。 的前两阶矩显示出超扩散行为，这是 KPZ 普适类的标志。然而，第三和第四阶矩排除了 KPZ 猜想，并可用于评估其他理论。我们的结果凸显了研究高阶矩在确定动力学普适类中的重要性，并为量子系统中的普适行为提供了关键见解。
引用
@article{arxiv.2306.09333,
title = {Dynamics of magnetization at infinite temperature in a Heisenberg spin chain},
author = {Eliott Rosenberg and Trond Andersen and Rhine Samajdar and Andre Petukhov and Jesse Hoke and Dmitry Abanin and Andreas Bengtsson and Ilya Drozdov and Catherine Erickson and Paul Klimov and Xiao Mi and Alexis Morvan and Matthew Neeley and Charles Neill and Rajeev Acharya and Richard Allen and Kyle Anderson and Markus Ansmann and Frank Arute and Kunal Arya and Abraham Asfaw and Juan Atalaya and Joseph Bardin and A. Bilmes and Gina Bortoli and Alexandre Bourassa and Jenna Bovaird and Leon Brill and Michael Broughton and Bob B. Buckley and David Buell and Tim Burger and Brian Burkett and Nicholas Bushnell and Juan Campero and Hung-Shen Chang and Zijun Chen and Benjamin Chiaro and Desmond Chik and Josh Cogan and Roberto Collins and Paul Conner and William Courtney and Alexander Crook and Ben Curtin and Dripto Debroy and Alexander Del Toro Barba and Sean Demura and Agustin Di Paolo and Andrew Dunsworth and Clint Earle and E. Farhi and Reza Fatemi and Vinicius Ferreira and Leslie Flores and Ebrahim Forati and Austin Fowler and Brooks Foxen and Gonzalo Garcia and Élie Genois and William Giang and Craig Gidney and Dar Gilboa and Marissa Giustina and Raja Gosula and Alejandro Grajales Dau and Jonathan Gross and Steve Habegger and Michael Hamilton and Monica Hansen and Matthew Harrigan and Sean Harrington and Paula Heu and Gordon Hill and Markus Hoffmann and Sabrina Hong and Trent Huang and Ashley Huff and William Huggins and Lev Ioffe and Sergei Isakov and Justin Iveland and Evan Jeffrey and Zhang Jiang and Cody Jones and Pavol Juhas and D. Kafri and Tanuj Khattar and Mostafa Khezri and Mária Kieferová and Seon Kim and Alexei Kitaev and Andrey Klots and Alexander Korotkov and Fedor Kostritsa and John Mark Kreikebaum and David Landhuis and Pavel Laptev and Kim Ming Lau and Lily Laws and Joonho Lee and Kenneth Lee and Yuri Lensky and Brian Lester and Alexander Lill and Wayne Liu and William P. Livingston and A. Locharla and Salvatore Mandrà and Orion Martin and Steven Martin and Jarrod McClean and Matthew McEwen and Seneca Meeks and Kevin Miao and Amanda Mieszala and Shirin Montazeri and Ramis Movassagh and Wojciech Mruczkiewicz and Ani Nersisyan and Michael Newman and Jiun How Ng and Anthony Nguyen and Murray Nguyen and M. Niu and Thomas O'Brien and Seun Omonije and Alex Opremcak and Rebecca Potter and Leonid Pryadko and Chris Quintana and David Rhodes and Charles Rocque and N. Rubin and Negar Saei and Daniel Sank and Kannan Sankaragomathi and Kevin Satzinger and Henry Schurkus and Christopher Schuster and Michael Shearn and Aaron Shorter and Noah Shutty and Vladimir Shvarts and Volodymyr Sivak and Jindra Skruzny and Clarke Smith and Rolando Somma and George Sterling and Doug Strain and Marco Szalay and Douglas Thor and Alfredo Torres and Guifre Vidal and Benjamin Villalonga and Catherine Vollgraff Heidweiller and Theodore White and Bryan Woo and Cheng Xing and Jamie Yao and Ping Yeh and Juhwan Yoo and Grayson Young and Adam Zalcman and Yaxing Zhang and Ningfeng Zhu and Nicholas Zobrist and Hartmut Neven and Ryan Babbush and Dave Bacon and Sergio Boixo and Jeremy Hilton and Erik Lucero and Anthony Megrant and Julian Kelly and Yu Chen and Vadim Smelyanskiy and Vedika Khemani and Sarang Gopalakrishnan and Tomaž Prosen and Pedram Roushan},
journal= {arXiv preprint arXiv:2306.09333},
year = {2024}
}