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Quantum Diamond Microscope for Dynamic Imaging of Magnetic Fields
Jiashen Tang, Zechuan Yin, Connor A. Hart +6
Wide-field imaging of magnetic signals using ensembles of nitrogen-vacancy (NV) centers in diamond has garnered increasing interest due to its combination of micron-scale resolutio…
Controllable tunability of a Chern number within the electronic-nuclear spin system in diamond
Junghyun Lee, Keigo Arai, Huiliang Zhang +2
Chern numbers are gaining traction as they characterize topological phases in various physical systems. However, the resilience of the system topology to external perturbations mak…
Ramsey Envelope Modulation in NV Diamond Magnetometry
Jner Tzern Oon, Jiashen Tang, Connor A. Hart +4
Nitrogen-vacancy (NV) spin ensembles in diamond provide an advanced magnetic sensing platform, with applications in both the physical and life sciences. The development of isotopic…
Quantum Logic Enhanced Sensing in Solid-State Spin Ensembles
Nithya Arunkumar, Kevin S. Olsson, Jner Tzern Oon +7
We demonstrate quantum logic enhanced sensitivity for a macroscopic ensemble of solid-state, hybrid two-qubit sensors. We achieve a factor of 30 improvement in signal-to-noise rati…
Dressed-state control of effective dipolar interaction between strongly-coupled solid-state spins
Junghyun Lee, Mamiko Tatsuta, Andrew Xu +3
Strong interactions between spins in many-body solid-state quantum system is a crucial resource for exploring and applying non-classical states. In particular, electronic spins ass…
High-precision mapping of diamond crystal strain using quantum interferometry
Mason C. Marshall, Reza Ebadi, Connor Hart +4
Crystal strain variation imposes significant limitations on many quantum sensing and information applications for solid-state defect qubits in diamond. Thus, precision measurement…
Multiplexed sensing of magnetic field and temperature in real time using a nitrogen vacancy spin ensemble in diamond
Jeong Hyun Shim, Seong-Joo Lee, Santosh Ghimire +7
Nitrogen-Vacancy (NV) spin in diamond is a versatile quantum sensor, being able to measure physical quantities such as magnetic field, electric field, temperature, and pressure. In…
NV-Diamond Magnetic Microscopy using a Double Quantum 4-Ramsey Protocol
Connor A. Hart, Jennifer M. Schloss, Matthew J. Turner +3
We introduce a double quantum (DQ) 4-Ramsey measurement protocol that enables wide-field magnetic imaging using nitrogen vacancy (NV) centers in diamond, with enhanced homogeneity…
Magnetic Field Fingerprinting of Integrated Circuit Activity with a Quantum Diamond Microscope
Matthew J. Turner, Nicholas Langellier, Rachel Bainbridge +9
Current density distributions in active integrated circuits (ICs) result in patterns of magnetic fields that contain structural and functional information about the IC. Magnetic fi…
Development of Quantum InterConnects for Next-Generation Information Technologies
David Awschalom, Karl K. Berggren, Hannes Bernien +32
Just as classical information technology rests on a foundation built of interconnected information-processing systems, quantum information technology (QIT) must do the same. A crit…
Decoherence of dipolar spin ensembles in diamond
Erik Bauch, Swati Singh, Junghyun Lee +8
We present a combined theoretical and experimental study of solid-state spin decoherence in an electronic spin bath, focusing specifically on ensembles of nitrogen vacancy (NV) col…
Sensitivity Optimization for NV-Diamond Magnetometry
John F. Barry, Jennifer M. Schloss, Erik Bauch +4
Solid-state spin systems including nitrogen-vacancy (NV) centers in diamond constitute an increasingly favored quantum sensing platform. However, present NV ensemble devices exhibi…
Simultaneous Broadband Vector Magnetometry Using Solid-State Spins
Jennifer M. Schloss, John F. Barry, Matthew J. Turner +1
We demonstrate a vector magnetometer that simultaneously measures all Cartesian components of a dynamic magnetic field using an ensemble of nitrogen-vacancy (NV) centers in a singl…
Geometric phase magnetometry using a solid-state spin
Keigo Arai, Junghyun Lee, Chinmay Belthangady +3
Magnetometry is a powerful technique for the non-invasive study of biological and physical systems. A key challenge lies in the simultaneous optimization of magnetic field sensitiv…
Light, the universe, and everything -- 12 Herculean tasks for quantum cowboys and black diamond skiers
Girish Agarwal, Roland Allen, Iva Bezdekova +29
The Winter Colloquium on the Physics of Quantum Electronics (PQE) has been a seminal force in quantum optics and related areas since 1971. It is rather mindboggling to recognize ho…
Ultralong Dephasing Times in Solid-State Spin Ensembles via Quantum Control
Erik Bauch, Connor A. Hart, Jennifer M. Schloss +5
Quantum spin dephasing is caused by inhomogeneous coupling to the environment, with resulting limits to the measurement time and precision of spin-based sensors. The effects of spi…
Sensing coherent dynamics of electronic spin clusters in solids
Emma L. Rosenfeld, Linh M. Pham, Mikhail D. Lukin +1
We present experimental observations and a study of quantum dynamics of strongly interacting electronic spins, at room temperature in the solid state. In a diamond substrate, a sin…
Improved quantum sensing with a single solid-state spin via spin-to-charge conversion
Jean-Christophe Jaskula, Brendan J. Shields, Erik Bauch +3
Efficient optical readout of a single, solid-state electronic spin at room temperature is a key challenge for nanoscale quantum sensing. Here we apply the technique of spin-to-char…
High Resolution Magnetic Resonance Spectroscopy Using Solid-State Spins
Dominik B. Bucher, David R. Glenn, Junghyun Lee +3
We demonstrate a synchronized readout (SR) technique for spectrally selective detection of oscillating magnetic fields with sub-millihertz resolution, using coherent manipulation o…
Selective addressing of solid-state spins at the nanoscale via magnetic resonance frequency encoding
Huiliang Zhang, Keigo Arai, Chinmay Belthangady +2
The nitrogen-vacancy (NV) centre in diamond is a leading platform for nanoscale sensing and imaging, as well as quantum information processing in the solid state. To date, individu…
Superresolution optical magnetic imaging and spectroscopy using individual electronic spins in diamond
Jean-Christophe Jaskula, Erik Bauch, Silvia Arroyo-Camejo +4
Nitrogen vacancy (NV) color centers in diamond are a leading modality for both superresolution optical imaging and nanoscale magnetic field sensing. In this work, we solve the rema…
Probing Scalar Coupling Differences via Long-Lived Singlet States
Stephen J. DeVience, Ronald L. Walsworth, Matthew S. Rosen
We probe small scalar coupling differences via the coherent interactions between two nuclear spin singlet states in organic molecules. We show that the spin-lock induced crossing (…
NMR Technique for Determining the Depth of Shallow Nitrogen-Vacancy Centers in Diamond
Linh M. Pham, Stephen J. DeVience, Francesco Casola +10
We demonstrate a robust experimental method for determining the depth of individual shallow Nitrogen-Vacancy (NV) centers in diamond with nm uncertainty. We use a confocal…
Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond
Demitry Farfurnik, Andrey Jarmola, Linh M. Pham +5
We demonstrate significant improvements of the spin coherence time of a dense ensemble of nitrogen-vacancy (NV) centers in diamond through optimized dynamical decoupling (DD). Cool…