149 citations · 465 across the 13 of their papers we have counts for
13 papers
A Connectivity-Order Law and Conditional Minimal-Mechanism Identification in Many-Body Geometric Phases
Kuo Hai, Junhao Huang, Qiong Chen +1
The value of a multiqubit geometric phase at a single operating point does not reveal whether it was generated directly or through a connected sequence of lower-body interactions.…
Coherently controlling robust spin-orbit qubits of electrons in nanowire quantum dots
Kuo Hai, Xuefang Deng, Qiong Chen +1
We consider an electron confined in a gated nanowire quantum dot (NQD) with arbitrarily strong spin-orbit coupling (SOC) and weak static magnetic field, and treat the latter as a p…
Limited-control metrology approaching the Heisenberg limit without entanglement preparation
Benedikt Tratzmiller, Qiong Chen, Ilai Schwartz +2
Current metrological bounds typically assume full control over all particles that are involved in the protocol. Relaxing this assumption we study metrological performance when only…
Braiding a novel kind of Majorana-like quasiparticles in nanowire quantum dots
Kuo Hai, Qiong Chen, Wenhua Hai
For an electrically driven electron confined in a nanowire quantum dot with spin-orbit coupling (SOC), we find a SOC-magnetism phase-locked condition under which we derive a comple…
Pulsed polarisation for robust DNP
Ilai Schwartz, Jochen Scheuer, Benedikt Tratzmiller +8
Dynamical nuclear polarisation (DNP) is an important technique that uses polarisation transfer from electron to nuclear spins to achieve nuclear hyperpolarisation. As the electron…
Towards hyperpolarization of oil molecules via nitrogen-vacancy centers in diamond
P. Fernández-Acebal, O. Rosolio, J. Scheuer +10
Efficient polarization of organic molecules is of extraordinary relevance when performing nuclear magnetic resonance (NMR) and imaging. Commercially available routes to dynamical n…
Blueprint for nanoscale NMR
Ilai Schwartz, Joachim Rosskopf, Simon Schmitt +5
Nitrogen vacancy (NV) centers in diamond have been used as ultrasensitive magnetometers to perform nuclear magnetic resonance (NMR) spectroscopy of statistically polarized samples…
Robust techniques for polarization and detection of nuclear spin ensembles
Jochen Scheuer, Ilai Schwartz, Samuel Müller +5
Highly sensitive nuclear spin detection is crucial in many scientific areas including nuclear magnetic resonance spectroscopy (NMR), imaging (MRI) and quantum computing. The tiny t…
Steady state preparation of long-lived nuclear spin singlet pair at room temperature
Q. Chen, I. Schwarz, M. B. Plenio
The coherent high-fidelity generation of nuclear spins in long-lived singlet states which may find application as quantum memory or sensor represents a considerable experimental ch…
Dissipatively stabilized quantum sensor based on indirect nuclear-nuclear interactions
Q. Chen, I. Schwarz, M. B. Plenio
We propose to use a dissipatively engineered nitrogen vacancy (NV) center as a mediator of interaction between two nuclear spins that are protected from decoherence and relaxation…
Optically induced dynamic nuclear spin polarisation in diamond
Jochen Scheuer, Ilai Schwartz, Qiong Chen +10
The sensitivity of Magnetic Resonance Imaging (MRI) depends strongly on nuclear spin polarisation and, motivated by this observation, dynamical nuclear spin polarisation has recent…
Resonance-inclined optical nuclear spin polarization of liquids in diamond structures
Qiong Chen, Ilai Schwarz, Fedor Jelezko +2
Dynamic nuclear polarization (DNP) of molecules in a solution at room temperature has potential to revolutionize nuclear magnetic resonance spectroscopy and imaging. The prevalent…
Optical hyperpolarization of 13C nuclear spins in nanodiamond ensembles
Q. Chen, I. Schwarz, F. Jelezko +2
Here we propose and analyse in detail protocols that can achieve rapid hyperpolarization of 13C nuclear spins in randomly oriented ensembles of nanodiamonds at room temperature. Ou…