Kavli Affiliate: Natalia Chepiga | First 5 Authors: Bernhard Lüscher, Frédéric Mila, Natalia Chepiga, , | Summary: We investigate the nature of the phase transitions in the quantum Ashkin-Teller chain in the presence of chiral perturbations. We locate the Lifshitz line separating a region of direct chiral transitions from the region where the transition is […]
Kavli Affiliate: Giordano Scappucci | First 5 Authors: Valentin John, Francesco Borsoi, Zoltán György, Chien-An Wang, Gábor Széchenyi | Summary: Electrically driven spin resonance is a powerful technique for controlling semiconductor spin qubits. However, it faces challenges in qubit addressability and off-resonance driving in larger systems. We demonstrate coherent bichromatic Rabi control of quantum dot […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: Helene Spring, Viktor Könye, Anton R. Akhmerov, Ion Cosma Fulga, | Summary: The non-Hermitian skin effect is a phenomenon in which an extensive number of states accumulates at the boundaries of a system. It has been associated to nontrivial topology, with nonzero bulk invariants predicting its […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: Helene Spring, Viktor Könye, Anton R. Akhmerov, Ion Cosma Fulga, | Summary: The non-Hermitian skin effect is a phenomenon in which an extensive number of states accumulates at the boundaries of a system. It has been associated to nontrivial topology, with nonzero bulk invariants predicting its […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: Helene Spring, Viktor Könye, Anton R. Akhmerov, Ion Cosma Fulga, | Summary: The non-Hermitian skin effect is a phenomenon in which an extensive number of states accumulates at the boundaries of a system. It has been associated to nontrivial topology, with nonzero bulk invariants predicting its […]
Kavli Affiliate: Simon Groblacher | First 5 Authors: Wenye Ji, Jin Chang2, He-Xiu Xu, Jian Rong Gao, Simon Gröblacher | Summary: As a two-dimensional planar material with low depth profile, a metasurface can generate non-classical phase distributions for the transmitted and reflected electromagnetic waves at its interface. Thus, it offers more flexibility to control the […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: A. Mert Bozkurt, Jasper Brookman, Valla Fatemi, Anton R. Akhmerov, | Summary: We present a systematic method to design arbitrary energy-phase relations using parallel arms of two series Josephson tunnel junctions each. Our approach employs Fourier engineering in the energy-phase relation of each arm and the […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: A. Mert Bozkurt, Jasper Brookman, Valla Fatemi, Anton R. Akhmerov, | Summary: We present a systematic method to design arbitrary energy-phase relations using parallel arms of two series Josephson tunnel junctions each. Our approach employs Fourier engineering in the energy-phase relation of each arm and the […]
Kavli Affiliate: Stephanie Wehner | First 5 Authors: Gayane Vardoyan, Emily van Milligen, Saikat Guha, Stephanie Wehner, Don Towsley | Summary: We consider the problem of multi-path entanglement distribution to a pair of nodes in a quantum network consisting of devices with non-deterministic entanglement swapping capabilities. Multi-path entanglement distribution enables a network to establish end-to-end […]
Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: Juan Daniel Torres Luna, Sathish R. Kuppuswamy, Anton R. Akhmerov, , | Summary: Braiding of Majorana states demonstrates their non-Abelian exchange statistics. One implementation of braiding requires control of the pairwise couplings between all Majorana states in a trijunction device. In order to have adiabaticity, a […]