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Molecular nanomagnets show clear signatures of coherent behavior and have a wide variety of effective low-energy spin Hamiltonians suitable for encoding qubits and implementing spin-based quantum information processing. At the nanoscale,…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Mircea Trif , Filippo Troiani , Dimitrije Stepanenko , Daniel Loss

We report magnetic field spectroscopy measurements in carbon nanotube quantum dots exhibiting four-fold shell structure in the energy level spectrum. The magnetic field induces a large splitting between the two orbital states of each shell,…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 P. Jarillo-Herrero , J. Kong , H. S. J. van der Zant , C. Dekker , L. P. Kouwenhoven , S. De Franceschi

We propose a microscopic model for a nanoelectromechanical system made by a radio-frequency driven suspended carbon nanotube (CNT) in the presence of an external magnetic field perpendicular to the current. As a main result, we show that,…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 A. Nocera , C. A. Perroni , V. Marigliano Ramaglia , G. Cantele , V. Cataudella

We report the observation of stationary turbulence in antiferromagnetic spin-1 Bose-Einstein condensates driven by a radio-frequency magnetic field. The magnetic driving injects energy into the system by spin rotation and the energy is…

Quantum Gases · Physics 2023-08-03 Deokhwa Hong , Junghoon Lee , Jongmin Kim , Jong Heum Jung , Kyuhwan Lee , Seji Kang , Yong-il Shin

We investigate the effects of spin-orbit interaction (SOI) and valley mixing on the transport and dynamical properties of a carbon nanotube (CNT) quantum dot in the Kondo regime. As these perturbations break the pseudo-spin symmetry in the…

Mesoscale and Nanoscale Physics · Physics 2015-12-09 Davide Mantelli , Catalin Pascu Moca , Gergely Zarand , Milena Grifoni

For most chiralities, semiconducting nanotubes display topologically protected end states of multiple degeneracies. We demonstrate using density matrix renormalization group based quantum chemistry tools that the presence of Coulomb…

Strongly Correlated Electrons · Physics 2021-02-12 Cătălin Paşcu Moca , Wataru Izumida , Balázs Dóra , Örs Legeza , János K. Asbóth , Gergely Zaránd

While traditionally considered a deleterious effect in quantum dot spin qubits, the spin-orbit interaction is recently being revisited as it allows for rapid coherent control by on-chip AC electric fields. For electrons in bulk silicon, SOC…

The coupling between electrons and phonons is at the heart of many fundamental phenomena in physics. In nature, this coupling is generally predetermined for both, molecules and solids. Tremendous advances have been made in controlling…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 Avishai Benyamini , Assaf Hamo , Silvia Viola Kusminskiy , Felix von Oppen , Shahal Ilani

Hybrid carbon nanotube-fullerene architectures provide a controllable platform for studying irreversibility and information flow in structured quantum environments. We analyze entropy generation in a system where paramagnetic endohedral…

Mesoscale and Nanoscale Physics · Physics 2026-05-18 Cristian Staii

Solid state spin qubits are promising candidates for quantum information processing, but controlled interactions and entanglement in large, multi-qubit systems are currently difficult to achieve. We describe a method for programmable…

Spin and angular momenta of light are important degrees of freedom in nanophotonics which control light propagation, optical forces and information encoding. Typically, optical angular momentum is generated using q-plates or spatial light…

Optics · Physics 2020-02-28 Alessandro Ciattoni , Claudio Conti , Anatoly Zayats , Andrea Marini

We successfully demonstrated experimentally the electrical-field-mediated control of the spin of electrons confined in an SOI Quantum Dot (QD) device fabricated with a standard CMOS process flow. Furthermore, we show that the Back-Gate…

Spin qubits hosted in silicon (Si) quantum dots (QD) are attractive due to their exceptionally long coherence times and compatibility with the silicon transistor platform. To achieve electrical control of spins for qubit scalability, recent…

The main obstacle to coherent control of two-level quantum systems is their coupling to an uncontrolled environment. For electron spins in III-V quantum dots, the random environment is mostly given by the nuclear spins in the quantum dot…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 I. T. Vink , K. C. Nowack , F. H. L. Koppens , J. Danon , Yu. V. Nazarov , L. M. K. Vandersypen

On-chip magnets can be used to implement relatively large local magnetic field gradients in na- noelectronic circuits. Such field gradients provide possibilities for all-electrical control of electron spin-qubits where important coupling…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 F. Forster , M. Mühlbacher , D. Schuh , W. Wegscheider , S. Ludwig

An electron spin qubit in silicon quantum dots holds promise for quantum information processing due to the scalability and long coherence. An essential ingredient to recent progress is the employment of micromagnets. They generate a…

Mesoscale and Nanoscale Physics · Physics 2021-10-26 Peihao Huang , Xuedong Hu

Suspended carbon nanotubes are known to support self-driven oscillations due to electromechanical feedback under certain conditions, including low temperatures and high mechanical quality factors. Prior reports identified signatures of such…

Mesoscale and Nanoscale Physics · Physics 2020-07-28 Kyle Willick , Jonathan Baugh

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A…

Mesoscale and Nanoscale Physics · Physics 2013-10-11 Almas F. Sadreev , E. Ya. Sherman

We demonstrate a scalable new ferromagnetic resonance (FMR) technique based on the spin-orbit interaction. An alternating current drives FMR in uniform ferromagnetic structures patterned from the dilute magnetic semiconductors (Ga,Mn)As and…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 D. Fang , H. Kurebayashi , J. Wunderlich , K. Vyborny , L. P. Zarbo , R. P. Campion , A. Casiraghi , B. L. Gallagher , T. Jungwirth , A. J. Ferguson

The realization of electron-spin resonance at the single-atom level using scanning tunneling microscopy has opened new avenues for coherent quantum sensing and quantum state manipulation at the ultimate size limit. This allows to build…

Mesoscale and Nanoscale Physics · Physics 2025-12-10 Jose Reina-Gálvez , Hoang-Anh Le , Hong Thi Bui , Soo-hyon Phark , Nicolás Lorente , Christoph Wolf
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