Crosstalk in Multi-Qubit Fluxonium Architectures with Transmon Couplers

本文通过数值模拟研究了利用可调谐 transmon 作为耦合器的多比特 fluxonium 架构的可扩展性,指出虽然直接扩展会导致串扰使保真度低于 90%,但通过降低耦合强度并动态将未使用的 transmon 调至关闭状态,可将 spectator 错误抑制到$10^{-4}$以下,同时验证了该方案对直接电容耦合和微波串扰的鲁棒性。

Martijn F. S. Zwanenburg, Christian Kraglund Andersen2026-03-11⚛️ quant-ph

NASA's Cold Atom Laboratory: Five Years of Quantum Science Operations in Space

本文概述了 NASA 国际空间站冷原子实验室(CAL)自 2018 年发射以来作为全球首个多用户空间量子科学设施的设计与运行,总结了其在微重力环境下利用超冷原子(包括玻色 - 爱因斯坦凝聚态)取得的科学成果,并介绍了近期升级措施及未来任务展望。

Kamal Oudrhiri, James M. Kohel, Nate Harvey, James R. Kellogg, David C. Aveline, Roy L. Butler, Javier Bosch-Lluis, John L. Callas, Leo Y. Cheng, Arvid P. Croonquist, Walker L. Dula, Ethan R. Elliott, Jose E. Fernandez, Jorge Gonzales, Raymond J. Higuera, Shahram Javidnia, Sandy M. Kwan, Norman E. Lay, Dennis K. Lee, Irena Li, Gregory J. Miles, Michael T. Pauken, Kelly L. Perry, Leah E. Phillips, Sarah K. Rees, Matteo S. Sbroscia, Christian Schneider, Robert F. Shotwell, Gregory Y. Shin, Cao V. Tran, Michel E. William, Oscar Yang, Nan Yu, Robert J Thompson, Jason R. Williams, Diane C. Malarik, DeVon W. Griffin, Bradley M. Carpenter, Michael P. Robinson, Kirt Costello2026-03-10⚛️ quant-ph

SUPER and femtosecond spin-conserving coherent excitation of a tin-vacancy color center in diamond

该论文利用新型 SUPER 方案,通过非共振超短光脉冲实现了对金刚石锡空位色心主要光学跃迁的相干控制,并提出了基于共振脉冲的飞秒级量子门操作及自旋纠缠方案,从而开启了固态色心量子控制的新纪元。

Cem Güney Torun, Mustafa Gökçe, Thomas K. Bracht, Mariano Isaza Monsalve, Sarah Benbouabdellah, Özgün Ozan Nacitarhan, Marco E. Stucki, Domenica Bermeo Alvaro, Matthew L. Markham, Tommaso Pregnolato, Joseph H. D. Munns, Gregor Pieplow, Doris E. Reiter, Tim Schröder2026-03-10⚛️ quant-ph