English
Related papers

Related papers: Hyperpolarized Molecular Nuclear Spins Achieve Mag…

200 papers

The weak interaction does not conserve parity, which is apparent in many nuclear and atomic phenomena. However, thus far, parity nonconservation has not been observed in molecules. Here we consider nuclear-spin-dependent parity…

We propose a new mechanism for polarizing nuclear spins in quantum dots, based on periodic modulation of the hyperfine coupling by electric driving at the electron spin resonance frequency. Dynamical nuclear polarization results from…

Mesoscale and Nanoscale Physics · Physics 2008-04-14 M. S. Rudner , L. S. Levitov

Quantum information processing often uses systems with dipolar interactions. We use a nuclear spin-based quantum simulator, to study the spreading of information in such a dipolar-coupled system and how perturbations to the dipolar…

Quantum Physics · Physics 2014-12-31 Gonzalo A. Alvarez , Robin Kaiser , Dieter Suter

The magnetic interactions between the spin of an unpaired electron and the surrounding nuclear spins can be exploited to gain structural information, to reduce nuclear relaxation times as well as to create nuclear hyperpolarization via…

Highly magnetized neutron stars are promising candidates to explain some of the most peculiar astronomical phenomena, for instance, fast radio bursts, gamma-ray bursts, and superluminous supernovae. Pulsations of these highly magnetized…

High Energy Astrophysical Phenomena · Physics 2023-03-13 Man Yin Leung , Anson Ka Long Yip , Patrick Chi-Kit Cheong , Tjonnie Guang Feng Li

Radical pairs and the dynamics they undergo are prevalent in many chemical and biological systems. Specifically, it has been proposed that the radical pair mechanism results from a relatively strong hyperfine interaction with its intrinsic…

Quantum Physics · Physics 2021-03-26 Amit Finkler , Durga Dasari

Quantum metrology protocols exploiting ensembles of $N$ two-level systems and Ramsey-style measurements are ubiquitous. However, in many cases excess readout noise severely degrades the measurement sensitivity; in particular in sensors…

Quantum Physics · Physics 2022-12-06 Martin Koppenhöfer , Peter Groszkowski , Hoi-Kwan Lau , A. A. Clerk

Dynamic nuclear polarization (DNP) is used in nuclear magnetic resonance (NMR) to transfer polarization from electron spins to nuclear spins. The resulting nuclear polarization enhancement can, in theory, be two or three orders of magnitude…

Quantum Physics · Physics 2015-10-14 Sarah Sheldon , David G. Cory

We describe a new approach to precision NMR with hyperpolarized gases designed to mitigate NMR frequency shifts due to the alkali spin exchange field. The electronic spin polarization of optically pumped alkali atoms is square-wave…

Atomic Physics · Physics 2015-12-23 Anna Korver , Daniel Thrasher , Mike Bulatowicz , Thad Walker

The implementation of nuclear magnetic resonance (NMR) at the nanoscale is a major challenge, as conventional systems require relatively large ensembles of spins and limit resolution to mesoscopic scales. New approaches based on quantum…

Nuclear hyperpolarization is a known method to enhance the signal in nuclear magnetic resonance (NMR) by orders of magnitude. The present work addresses the $^{13}$C hyperpolarization in diamond micro- and nanoparticles, using the…

In systems with spin-momentum locking, such as the surface states of three-dimensional topological insulators, a charge current is spin-polarized and spin-flip interactions between electron and nuclear spins can transfer this polarization…

Mesoscale and Nanoscale Physics · Physics 2025-06-18 Sofie Kölling , İnanç Adagideli , Alexander Brinkman

The strongly interacting system created in ultrarelativistic nuclear collisions behaves almost as an ideal fluid with rich patterns of the velocity field exhibiting strong vortical structure. Vorticity of the fluid, via spin-orbit coupling,…

Nuclear Experiment · Physics 2024-10-30 Takafumi Niida , Sergei A. Voloshin

The field of magnonics, which utilizes propagating spin waves for nano-scale transmission and processing of information, has been significantly advanced by the advent of the spin-orbit torque. The latter phenomenon can allow one to overcome…

Mesoscale and Nanoscale Physics · Physics 2020-05-05 V. E. Demidov , S. Urazhdin , A. Anane , V. Cros , S. O. Demokritov

Mapping the physical dipolar Hamiltonian of a solid-state network of nuclear spins onto a system of nearest-neighbor couplings would be extremely useful for a variety of quantum information processing applications, as well as NMR structural…

We analyze the polarization of nuclear spins in a quantum dot induced by a single-electron spin that is electrically driven to perform coherent Rabi oscillations. We derive the associated nuclear-spin polarization rate and analyze its…

Mesoscale and Nanoscale Physics · Physics 2023-10-25 Peter Stano , Takashi Nakajima , Akito Noiri , Seigo Tarucha , Daniel Loss

Searches for pseudo-magnetic spin couplings require implementation of techniques capable of sensitive detection of such interactions. While Spin-Exchange Relaxation Free (SERF) magnetometry is one of the most powerful approaches enabling…

Instrumentation and Detectors · Physics 2022-01-14 Mikhail Padniuk , Marek Kopciuch , Riccardo Cipolletti , Arne Wickenbrock , Dmitry Budker , Szymon Pustelny

SABRE (Signal Amplification By Reversible Exchange) has become a widely used method for hyper-polarizing nuclear spins, thereby enhancing their Nuclear Magnetic Resonance (NMR) signals by orders of magnitude. In SABRE experiments,…

Chemical Physics · Physics 2020-12-02 Stephan Knecht , Danila A. Barskiy , Gerd Buntkowsky , Konstantin L. Ivanov

Quantum Information processing by NMR with small number of qubits is well established. Scaling to higher number of qubits is hindered by two major requirements (i) mutual coupling among qubits and (ii) qubit addressability. It has been…

Quantum Physics · Physics 2009-11-10 Ranabir Das , Rangeet Bhattacharyya , Anil Kumar

Spin inertia measurements are a novel experimental tool to study long-time spin relaxation processes in semiconductor nanostructures. We develop a theory of the spin inertia effect for resident electrons and holes localized in quantum dots.…

Mesoscale and Nanoscale Physics · Physics 2019-12-23 Philipp Schering , Götz S. Uhrig , Dmitry S. Smirnov
‹ Prev 1 8 9 10 Next ›