Visualizing and manipulating chiral interface states in a moiré quantum anomalous Hall insulator

Posted by dbos Berkeley

Kavli Affiliate: Michael F. Crommie | First 5 Authors: Canxun Zhang, Tiancong Zhu, Salman Kahn, Tomohiro Soejima, Kenji Watanabe | Summary: Moir’e systems made from stacked two-dimensional materials host novel correlated and topological states that can be electrically controlled via applied gate voltages. We have used this technique to manipulate Chern domains in an interaction-driven […]


Continue.. Visualizing and manipulating chiral interface states in a moiré quantum anomalous Hall insulator

Non-Abelian effects in dissipative photonic topological lattices

Posted by Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Midya Parto, Christian Leefmans, James Williams, Franco Nori, Alireza Marandi | Summary: Topology is central to phenomena that arise in a variety of fields, ranging from quantum field theory to quantum information science to condensed matter physics. Recently, the study of topology has been extended to open […]


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Spin wavepackets in the Kagome ferromagnet Fe$_3$Sn$_2$: propagation and precursors

Posted by klaurent Berkeley

Kavli Affiliate: Joel Moore | First 5 Authors: Changmin Lee, Yue Sun, Linda Ye, Sumedh Rathi, Kevin Wang | Summary: The propagation of spin waves in magnetically ordered systems has emerged as a potential means to shuttle quantum information over large distances. Conventionally, the arrival time of a spin wavepacket at a distance, $d$, is […]


Continue.. Spin wavepackets in the Kagome ferromagnet Fe$_3$Sn$_2$: propagation and precursors

Spin wavepackets in the Kagome ferromagnet Fe$_3$Sn$_2$: propagation and precursors

Posted by klaurent Berkeley

Kavli Affiliate: Joel Moore | First 5 Authors: Changmin Lee, Yue Sun, Linda Ye, Sumedh Rathi, Kevin Wang | Summary: The propagation of spin waves in magnetically ordered systems has emerged as a potential means to shuttle quantum information over large distances. Conventionally, the arrival time of a spin wavepacket at a distance, $d$, is […]


Continue.. Spin wavepackets in the Kagome ferromagnet Fe$_3$Sn$_2$: propagation and precursors

Controlled crossed Andreev reflection and elastic co-tunneling mediated by Andreev bound states

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Alberto Bordin, Guanzhong Wang, Chun-Xiao Liu, Sebastiaan L. D. ten Haaf, Grzegorz P. Mazur | Summary: A short superconducting segment can couple attached quantum dots via elastic co-tunneling (ECT) and crossed Andreev reflection (CAR). Such coupled quantum dots can host Majorana bound states provided that the ratio […]


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A hybrid quantum photonic interface for $^{171}$Yb solid-state qubits

Posted by Caltech

Kavli Affiliate: Andrei Faraon | First 5 Authors: Chun-Ju Wu, Daniel Riedel, Andrei Ruskuc, Ding Zhong, Hyounghan Kwon | Summary: $^{171}$Yb$^{3+}$ in YVO$_4$ is a promising candidate for building quantum networks with good optical addressability, excellent spin properties and a secondary nuclear-spin quantum register. However, the associated long optical lifetime necessitates coupling to optical resonators […]


Continue.. A hybrid quantum photonic interface for $^{171}$Yb solid-state qubits

A hybrid quantum photonic interface for $^{171}$Yb solid-state qubits

Posted by Caltech

Kavli Affiliate: Andrei Faraon | First 5 Authors: Chun-Ju Wu, Daniel Riedel, Andrei Ruskuc, Ding Zhong, Hyounghan Kwon | Summary: $^{171}$Yb$^{3+}$ in YVO$_4$ is a promising candidate for building quantum networks with good optical addressability, excellent spin properties and a secondary nuclear-spin quantum register. However, the associated long optical lifetime necessitates coupling to optical resonators […]


Continue.. A hybrid quantum photonic interface for $^{171}$Yb solid-state qubits

Fusion protocol for Majorana modes in coupled quantum dots

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Haining Pan, F. Setiawan, Michael Wimmer, Jay D. Sau | Summary: In a recent breakthrough experiment (arXiv:2206.08045), Majorana zero modes have been observed in tunnel spectroscopy for a minimal Kitaev chain constructed from coupled quantum dots. However, as Ising anyons, Majoranas’ most fundamental property of […]


Continue.. Fusion protocol for Majorana modes in coupled quantum dots

Fusion protocol for Majorana modes in coupled quantum dots

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Chun-Xiao Liu, Haining Pan, F. Setiawan, Michael Wimmer, Jay D. Sau | Summary: In a recent breakthrough experiment [Nature (London) 614, 445 (2023)], signatures of Majorana zero modes have been observed in tunnel spectroscopy for a minimal Kitaev chain constructed from coupled quantum dots. However, as Ising […]


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Optical Refrigeration for an Optomechanical Amplifier

Posted by dbos Caltech

Kavli Affiliate: Rana X. Adhikari | First 5 Authors: Samuel Schulz, Yehonathan Drori, Christopher Wipf, Rana X Adhikari, | Summary: We explore the viability of using optical refrigeration as a low-vibration cooling method for a phase-sensitive optomechanical amplifier proposed to improve the sensitivity of future gravitational wave detectors. We find that with moderate improvements on […]


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