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Physics

Atomic / Molecular / Quantum

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Displaying 276 - 300 of 1114

Engineering infinite-range SU (n) interactions with spin-orbit-coupled fermions in an optical lattice

February 25, 2022

Author(s)

Michael Perlin, Diego Barberena, Mikhail Mamaev, Bhuvanesh Sundar, Robert Lewis-Swan, Ana Maria Rey

Partial densities of states from x-ray absorption and Auger electron spectroscopy through use of core-hole memory

February 25, 2022

Author(s)

Eric L. Shirley, Joseph Woicik, Conan Weiland

Spectroscopy on the electron-electric-dipole-moment-sensitive states of ThF +

February 24, 2022

Author(s)

Kia Boon Ng, Yan Zhou, Lan Cheng, Noah Schlossberger, Sun Yool Park, Tanya Roussy, Luke Caldwell, Yuval Shagam, Antonio Vigil, Eric A. Cornell, Jun Ye

Thermal-light heterodyne spectroscopy with frequency comb calibration

February 18, 2022

Author(s)

Scott Diddams, Connor Fredrick, Franklyn Quinlan, Ryan Terrien, Suvrath Mahadevan, Freja Olsen

Precision laser spectroscopy is key to many developments in atomic and molecular physics and the advancement of related technologies such as atomic clocks and sensors. However, in important spectroscopic scenarios, such as astronomy and remote sensing, the

Resolving the gravitational redshift across a millimetre-scale atomic sample

February 16, 2022

Author(s)

Tobias Bothwell, Colin Kennedy, Alexander Aeppli, Dhruv Kedar, John Robinson, Eric Oelker, Alexander Staron, Jun Ye

Experimental observation of thermalisation with noncommuting charges

February 9, 2022

Author(s)

Florian Kranzl, Aleksander Lasek, Manoj Joshi, Amir Kalev, Rainer Blatt, Christian Roos, Nicole Halpern

Quantum simulators have recently enabled experimental observations of quantum many-body systems' internal thermalisation. Often, the global energy and particle number are conserved, and the system is prepared with a well-defined particle number—in a

Polarity-tunable anomalous Hall effect in magnetic topological insulator MnBi2Te4

February 4, 2022

Author(s)

Albert Davydov, Huairuo Zhang

The polarity-tunable anomalous Hall effect (AHE) is useful for electronic device applications. Here in a magnetic topological insulator MnBi2Te4 grown by molecular beam epitaxy, we report the polarity change of the AHE by increasing the temperature or

In situ flow cytometer calibration and single-molecule resolution via quantum measurement

February 2, 2022

Author(s)

Ivan Burenkov, Sergey Polyakov, Juan J. Sabines Chesterking

Fluorescent biomarkers are used to detect target molecules within inhomogeneous populations of cells. When these biomarkers are found in trace amounts it becomes extremely challenging to detect their presence in a flow cytometer. Here, we present a

Difference-Frequency Chirped-Pulse Dual-comb Generation in the THz Region: Magnification of Molecular Dynamics of Water Vapor Lines by > 60,000

January 24, 2022

Author(s)

Jasper Stroud, David Plusquellic

A new difference frequency method to perform terahertz dual-comb spectroscopy is reported based on electro-optic phase modulators (EOMs) and two free-running lasers. A variation of a near-IR interleaving scheme we recently reported has been developed to

Realistic simulations of spin squeezing and cooperative coupling effects in large ensembles of interacting two-level systems

January 24, 2022

Author(s)

Julian Huber, Ana Maria Rey, Peter Rabl

We describe an efficient numerical method for simulating the dynamics of interacting spin ensembles in the presence of dephasing and decay. The method builds on the discrete truncated Wigner approximation for isolated systems, which combines the mean-

Noble-metal dark-edge fermiology: core-hole memory and the "Zeeman Auger" effect

January 12, 2022

Author(s)

Eric L. Shirley, Joseph Woicik, Conan Weiland, Ahmed Rumaiz, Charles Cardot, Joshua Kas, John Rehr

Gold and platinum have the face-centered-cubic crystal structure, are considered noble metals, and differ by one in atomic number. Near-edge M4,5 x-ray absorption and resonant M4,5N6,7N6,7 Auger spectroscopy reveal "dark" edges and a photon-energy

Roaming pathways and survival probability in real-time collisional dynamics of cold and controlled bialkali molecules

January 10, 2022

Author(s)

Eite Tiesinga, Jacek Klos, Qingze Guan, Hui Li, Ming Li, Svetlana Kotochigova

High Phase-Space Density of Laser-Cooled Molecules in an Optical Lattice

December 21, 2021

Author(s)

Yewei Wu, Justin J. Burau, Kameron Mehling, Jun Ye, Shiqian Ding

Initial study of the distributed cavity phase shift for the new microwave cavities of NIST F1

December 21, 2021

Author(s)

Gregory Hoth, Bijunath Patla, Neil Ashby, Vladislav Gerginov

We are in the process of re-evaluating NIST-F1, the cesium fountain primary frequency standard at the National Institute of Standards and Technology (NIST). Here, we describe an initial study of the frequency bias caused by the distributed cavity phase