中文
相关论文

相关论文: Composite Dipolar Recoupling: Anisotropy Compensat…

200 篇论文

Relaxation-induced dipolar modulation enhancement (RIDME) is a pulse EPR technique that is particularly suitable to determine distances between paramagnetic centers with a broad EPR spectrum, e.g. metal-ion-based ones. As far as high-spin…

其他凝聚态物理 · 物理学 2020-10-21 Mykhailo Azarkh , Katharina Keller , Mian Qi , Adelheid Godt , Maxim Yulikov

The root raised-cosine pulse commonly used in linear digital modulations yields exactly two intersymbol interference components from the preceding and the subsequent data symbols, provided that the roll-off factor is $100\%$ and the…

信息论 · 计算机科学 2023-01-05 Pavel Loskot

We propose and substantiate experimentally the cascaded rotational Doppler effect for interactions of spinning objects with light carrying angular momentum. Based on the law of parity conservation for electromagnetic interactions, we reveal…

光学 · 物理学 2019-04-30 Junhong Deng , King Fai Li , Wei Liu , Guixin Li

We report measurements of enhanced tensor polarization on solid-state targets. The results here represent an increase in tensor polarization over that previously achieved in high energy and nuclear scattering experiments that focused on the…

仪器与探测器 · 物理学 2020-08-24 Dustin Keller , Don Crabb , Donal Day

Composite Pulses (CPs) are widely used in Nuclear Magnetic Resonance (NMR), optical spectroscopy, optimal control experiments and quantum computing to manipulate systems that are well-described by a two-level Hamiltonian. A careful design…

量子物理 · 物理学 2025-07-03 Jonathan Berkheim , David J. Tannor

Neutron correlation spectroscopy can exceed direct spectroscopy in the incoming beam intensity by up to two orders of magnitude at the same energy resolution. However, the propagation of the counting noise in the correlation algorithm of…

仪器与探测器 · 物理学 2016-09-13 F. Mezei , M. T. Caccamo , F. Migliardo , S. Magazù

Dynamic Nuclear Polarization (DNP) has revolutionized the field of solid-state NMR spectroscopy by significantly enhancing the sensitivity of nuclear magnetic resonance experiments. Conventionally, cross effect DNP relies on biradicals to…

化学物理 · 物理学 2023-09-28 Amaria Javed , Asif Equbal

Dynamic nuclear polarization experiments use microwave irradiation to transfer the larger electron polarization to nuclear spins of interest, and thus enhance the NMR transitions above thermal equilibrium. How the polarization transfer from…

化学物理 · 物理学 2026-01-12 Gian-Marco Camenisch , Nino Wili , Gunnar Jeschke , Matthias Ernst

A modification of the widely-used spin-lock-induced crossing (SLIC) procedure is proposed for the solution nuclear magnetic resonance (NMR) of strongly coupled nuclear spin systems, including singlet NMR and parahydrogen-enhanced…

量子物理 · 物理学 2026-02-10 Mohamed Sabba , Christian Bengs , Urvashi D. Heramun , Malcolm H. Levitt

NMR is a tool of choice for the measure of diffusion coefficients of species in solution. The DOSY experiment, a 2D implementation of this measure, has proven to be particularly useful for the study of complex mixtures, molecular…

数据分析、统计与概率 · 物理学 2017-04-12 Afef Cherni , Emilie Chouzenoux , Marc-André Delsuc

Quantum entanglement has long been recognized as an important resource for quantum sensing. In this work, we demonstrate the use of multiple-quantum solid-state NMR for quantum sensing by creating, manipulating, and detecting large clusters…

量子物理 · 物理学 2025-12-02 Conan Alexander , T S Mahesh

A magnetic dipole-dipole interaction is proposed as a scintillation quenching mechanism. The interaction rate follows $R^{-6}$ as the electric dipole-dipole interaction in F$\mathrm{\ddot{o}}$ster resonance energy transfer theory. The…

仪器与探测器 · 物理学 2026-02-24 Zhe Wang

The reversal of the time evolution of the local polarization in an interacting spin system involves a sign change of the effective dipolar Hamiltonian which refocuses the 'spin diffusion' process generating a polarization echo. Here, the…

凝聚态物理 · 物理学 2009-10-30 Patricia R. Levstein , Gonzalo Usaj , Horacio M. Pastawski

We experimentally demonstrate a weak measurement and measurement reversal-based scheme to ameliorate the effects of decoherence due to amplitude damping, on an NMR quantum processor. The weak measurement and measurement reversal processes…

量子物理 · 物理学 2024-09-20 Gayatri Singh , Akshay Gaikwad , Arvind , Kavita Dorai

Nuclear spin hyperpolarization provides a promising route to overcome the challenges imposed by the limited sensitivity of nuclear magnetic resonance. Here we demonstrate that dissolution of spin-polarized pentacene-doped naphthalene…

It was proved that the joint operation of electromagnetic reciprocity and $n$-fold ($n\geq3$) rotational symmetry would secure arbitrary polarization-independent backscattering efficiency [Phys. Rev. B \textbf{103}, 045422 (2021)]. Here we…

光学 · 物理学 2023-12-27 Chunchao Wen , Jianfa Zhang , Shiqiao Qin , Zhihong Zhu , Wei Liu

In NMR spectroscopy, undersampling in the indirect dimensions causes reconstruction artifacts whose size can be bounded using the so-called {\it coherence}. In experiments with multiple indirect dimensions, new undersampling approaches were…

应用统计 · 统计学 2017-02-08 Hatef Monajemi , David L. Donoho , Jeffrey C. Hoch , Adam D. Schuyler

We present the architecture of the versatile NMR spectrometer with software-defined radio (SDR) technology and its application to the dynamically controlled pulsed magnetic fields. The pulse-field technology is the only solution to access…

强关联电子 · 物理学 2021-11-24 Yoshihiko Ihara , Kaoru Hayashi , Tomoki Kanda , Kazuki Matsui , Koichi Kindo , Yoshimitsu Kohama

We show that the precise preparation of a quantum superposition between three rotational states of an ultracold dipolar molecule generates controllable interferences in their two-body scattering dynamics and collisional rate coefficients,…

量子气体 · 物理学 2024-06-21 Thibault Delarue , Goulven Quéméner

We describe how the spin coherence time of a localized electron spin in solids, i.e. a solid state spin qubit, can be prolonged by applying designed electron spin resonance pulse sequences. In particular, the spin echo decay due to the…

介观与纳米尺度物理 · 物理学 2011-03-14 W. M. Witzel , S. Das Sarma