Fermionic quantum computation with Cooper pair splitters

Kavli Affiliate: Michael Wimmer | First 5 Authors: Kostas Vilkelis, Antonio Manesco, Juan Daniel Torres Luna, Sebastian Miles, Michael Wimmer | Summary: We propose a practical implementation of a universal quantum computer that uses local fermionic modes (LFM) rather than qubits. The device layout consists of quantum dots tunnel coupled by a hybrid superconducting island […]


Continue.. Fermionic quantum computation with Cooper pair splitters

Fermionic quantum computation with Cooper pair splitters

Kavli Affiliate: Michael Wimmer | First 5 Authors: Kostas Vilkelis, Antonio Manesco, Juan Daniel Torres Luna, Sebastian Miles, Michael Wimmer | Summary: We propose a practical implementation of a universal quantum computer that uses local fermionic modes (LFM) rather than qubits. The device layout consists of quantum dots tunnel coupled by a hybrid superconducting island […]


Continue.. Fermionic quantum computation with Cooper pair splitters

Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99 %

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Kenta Takeda, Akito Noiri, Takashi Nakajima, Leon C. Camenzind, Takashi Kobayashi | Summary: Silicon-based spin qubits offer a potential pathway toward realizing a scalable quantum computer owing to their compatibility with semiconductor manufacturing technologies. Recent experiments in this system have demonstrated crucial technologies, including high-fidelity quantum gates […]


Continue.. Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99 %

Tunable quantum criticality in multi-component Rydberg arrays

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Natalia Chepiga, , , , | Summary: Arrays of Rydberg atoms have appeared as a remarkably rich playground to study quantum phase transitions in one dimension. One of the biggest puzzles that was brought forward in this context are chiral phase transitions out of density waves. In […]


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Tunable quantum criticality in multicomponent Rydberg arrays

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Natalia Chepiga, , , , | Summary: Arrays of Rydberg atoms have appeared as a remarkably rich playground to study quantum phase transitions in one dimension. One of the biggest puzzles that was brought forward in this context are chiral phase transitions out of density waves. Theoretically […]


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Quantum-assisted electron transport in microbial protein wires across macroscopic distances

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Jasper R. van der Veen, Silvia Hidalgo Martinez, Albert Wieland, Matteo De Pellegrin, Rick Verweij | Summary: Multicellular cable bacteria display an exceptional form of biological conduction, channeling electrical currents across centimeter distances through a regular network of protein fibers embedded in the […]


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Critical properties of the quantum Ashkin-Teller chain with chiral perturbations

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 […]


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Lack of near-sightedness principle in non-Hermitian systems

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 […]


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Recent Advances in Metasurface Design and Quantum Optics Applications with Machine Learning, Physics-Informed Neural Networks, and Topology Optimization Methods

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 […]


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Double-Fourier engineering of Josephson energy-phase relationships applied to diodes

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 […]


Continue.. Double-Fourier engineering of Josephson energy-phase relationships applied to diodes