Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory

Kavli Affiliate: Wolfgang Tittel | First 5 Authors: Antariksha Das, Mohsen Falamarzi Askarani, Jacob H. Davidson, Neil Sinclair, Joshua A. Slater | Summary: Rare-earth ion-doped crystals are of great interest for quantum memories, a central component in future quantum repeaters. To assess the promise of 1$%$ Tm$^{3+}$-doped yttrium gallium garnet (Tm:YGG), we report measurements of […]


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High-fidelity single-spin shuttling in silicon

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Maxim De Smet, Yuta Matsumoto, Anne-Marije J. Zwerver, Larysa Tryputen, Sander L. de Snoo | Summary: The computational power and fault-tolerance of future large-scale quantum processors derive in large part from the connectivity between the qubits. One approach to increase connectivity is to engineer qubit-qubit interactions at […]


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Spatial dependence of local density of states in semiconductor-superconductor hybrids

Kavli Affiliate: Srijit Goswami | First 5 Authors: Qingzhen Wang, Yining Zhang, Saurabh Karwal, Srijit Goswami, | Summary: Majorana bound states are expected to appear in one-dimensional semiconductor-superconductor hybrid systems, provided they are homogenous enough to host a global topological phase. In order to experimentally investigate the uniformity of the system, we study the spatial […]


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Quantum Circuit Switching with One-Way Repeaters in Star Networks

Kavli Affiliate: Stephanie Wehner | First 5 Authors: Álvaro G. Iñesta, Hyeongrak Choi, Dirk Englund, Stephanie Wehner, | Summary: Distributing quantum states reliably among distant locations is a key challenge in the field of quantum networks. One-way quantum networks address this by using one-way communication and quantum error correction. Here, we analyze quantum circuit switching […]


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Probing Short-Range Correlations in the van der Waals Magnet CrSBr by Small-Angle Neutron Scattering

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Andrey Rybakov, Carla Boix-Constant, Diego Alba Venero, Herre S. J. van der Zant, Samuel Mañas-Valero | Summary: The layered metamagnet CrSBr offers a rich interplay between magnetic, optical and electrical properties that can be extended down to the two-dimensional (2D) limit. Despite the […]


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Interaction-induced strong zero modes in short quantum dot chains with time-reversal symmetry

Kavli Affiliate: Michael Wimmer | First 5 Authors: A. Mert Bozkurt, Sebastian Miles, Sebastiaan L. D. ten Haaf, Chun-Xiao Liu, Fabian Hassler | Summary: We theoretically explore the emergence of strong zero modes in a two-site chain consisting of two quantum dots coupled due to a central dot that mediates electron hopping and singlet superconducting […]


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Quadrupolar resonance spectroscopy of individual nuclei using a room-temperature quantum sensor

Kavli Affiliate: Tim H. Taminiau | First 5 Authors: S. Alex Breitweiser, Mathieu Ouellet, Tzu-Yung Huang, Tim H. Taminiau, Lee C. Bassett | Summary: Nuclear quadrupolar resonance (NQR) spectroscopy reveals chemical bonding patterns in materials and molecules through the unique coupling between nuclear spins and local fields. However, traditional NQR techniques require macroscopic ensembles of […]


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Synchronization of E. coli bacteria moving in coupled wells

Kavli Affiliate: Cees Dekker | First 5 Authors: Aleksandre Japaridze, Victor Struijk, Kushal Swamy, Irek Roslon, Oriel Shoshani | Summary: Synchronization plays a crucial role in the dynamics of living organisms, from fireflies flashing in unison to pacemaker cells that jointly generate heartbeats. Uncovering the mechanism behind these phenomena requires an understanding of individual biological […]


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Cross-Platform Autonomous Control of Minimal Kitaev Chains

Kavli Affiliate: Michael Wimmer | First 5 Authors: David van Driel, Rouven Koch, Vincent P. M. Sietses, Sebastiaan L. D. ten Haaf, Chun-Xiao Liu | Summary: Contemporary quantum devices are reaching new limits in size and complexity, allowing for the experimental exploration of emergent quantum modes. However, this increased complexity introduces significant challenges in device […]


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A proximitized quantum dot in germanium

Kavli Affiliate: Menno Veldhorst | First 5 Authors: Lazar Lakic, William I. L. Lawrie, David van Driel, Lucas E. A. Stehouwer, Menno Veldhorst | Summary: Planar germanium quantum wells have recently been shown to host a hard-gapped superconductor-semiconductor interface. Additionally, quantum dot spin qubits in germanium are well-suited for quantum information processing, with isotopic purification […]


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