Results 131 to 140 of about 61,321 (227)

Ramsey interferometry with oppositely detuned fields

, 2006
We report a narrowing of the interference pattern obtained in an atomic Ramsey interferometer if the two separated fields have different frequency and their phase difference is controlled. The width of the Ramsey fringes depends inversely on the free flight time of ground state atoms before entering the first field region in addition to the time ...
Seidel, D., Muga, J. G.
openaire   +2 more sources

Melodies of the forest: Nature as an improvisational space for shared creative embodiment

People and Nature, EarlyView.
Abstract In an era marked by increasing disconnection from nature, innovative approaches to reconnect with the environment are crucial for both ecological and psychological well‐being. This paper explores how natural environments (a deciduous forest of Quebec in the present case study) can serve as an improvisational space for shared creative ...
Antoine Bellemare‐Pepin, Mar Estarellas, Eldad Tsabary   +2 more
wiley   +1 more source

Unidirectional and bidirectional photon transport blockade in driven atomic lattices of parity-time antisymmetry

New Journal of Physics
We propose a scheme for realizing exact parity-time ( $\mathcal{PT}$ ) antisymmetry of complex susceptibility in a wide range of probe detuning by considering a one-dimensional lattice of cold atoms driven into the simplest three-level Λ configuration ...
Xiao Liu, Jin-Hui Wu
doaj   +1 more source

Blinking Optical Tweezers for Atom Rearrangements

Advanced Quantum Technologies, EarlyView.
The work introduces an energy‐efficient method for holding and rearranging an N ×$\times$ M array of atoms using only N optical tweezers, using just 1M of the optical power per atom. In the proof‐of‐concept experiments, single blinking tweezer holds M = 9 atoms and further facilitates rearrangement M = 4 ∼$\sim$ 5 atoms in various configurations ...
Kangjin Kim, Kangheun Kim, Jaewook Ahn
wiley   +1 more source

Tunable Josephson Generator for Qubit Excitation and Two‐Tone Spectroscopy

Advanced Quantum Technologies, EarlyView.
A tunable on‐chip Josephson generator that enables direct qubit excitation has been presented. The device consists of a current‐biased Josephson junction and a superconducting resonator, forming a microwave source that operates at 4 K. Excitation of the qubit at 20 mK was done via a short coaxial line between the 4 K and 20 mK stages.
M. M. Khrenov, R. D. Yusupov, G. I. Gubochkin, V. A. Vozhakov, I. A. Nazhestkin, A. D. Belanovsky, A. S. Ionin, P. A. Gladilovich, G. S. Khismatullin, L. V. Filippenko, M. Y. Fominskii, V. P. Koshelets, M. Yu. Kupriyanov, V. V. Ryazanov, N. Maleeva, N. V. Klenov, I. I. Soloviev, D. S. Yakovlev   +17 more
wiley   +1 more source

Parametric Excitation of a Ferrimagnetic Sphere Resonator

Advanced Quantum Technologies, EarlyView.
The hypothesis that disentanglement spontaneously occurs in quantum systems is experimentally tested using a ferromagnetic resonator. Predictions derived from the hypothesis, and from an alternative theoretical model, are compared with the measured response of the resonator to an externally applied driving.
Eyal Buks
wiley   +1 more source

Nonlinear response functions and disorder: The case of the photogalvanic effect

Physical Review Research
We investigate the impact of disorder in the form of impurity scattering on a generalized version of the circular photogalvanic effect (CPGE) in Weyl semimetals where the frequency detuning between the two orthogonally polarized beams is nonzero ...
Konstantinos Ladovrechis, Tobias Meng
doaj   +1 more source

Versatile High‐Sensitivity EPR Using Superconducting Spiral Microresonators

Small Methods, EarlyView.
A significant sensitivity enhancement in conventional X‐band pulsed EPR is achieved using planar spiral microresonators fabricated from high‐temperature superconducting YBCO. Fully compatible with standard instrumentation, the approach enables high‐fidelity spin control under typical sample conditions.
Gediminas Usevičius, Mantas Šimėnas, Blaise L. Geoghegan, Oscar W. Kennedy, Ignas Pocius, Patrick Hogan, Ana Villanueva Ruiz de Temino, Jean‐Baptiste Verstraete, Paulina Verbaitytė, Angeliki Chatziathanasiou, G. Antilen Jacob, Mindaugas Kamarauskas, Marius Treideris, Paulius Gečys, Joseph Alexander, Vidmantas Kalendra, Jūras Banys, Maxie M. Roessler, John J.L. Morton   +18 more
wiley   +1 more source

Electromagnetically-induced transparency assists the Raman gradient echo memory at moderate detuning, dependent on gradient order

New Journal of Physics
Optical quantum memories are essential for quantum communications and photonic quantum technologies. Ensemble optical memories based on 3-level interactions are a popular basis for implementing these memories. All such memories, however, suffer from loss
Jesse L Everett, Ankit Papneja, Arindam Saha, Cameron Trainor, Aaron D Tranter, Ben C Buchler   +5 more
doaj   +1 more source

Prospective Respiratory Motion Correction Using Machine Learning and Pilot Tone (PROMPT) in Cardiac MRI

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1583-1595, March 2026.
ABSTRACT Purpose To implement and evaluate the feasibility of a Pilot Tone (PT)‐based prospective gating and tracking technique, which uses a long short‐term memory (LSTM) neural network to predict respiratory motion from PT signals. Methods A subject‐specific calibration scan consisting of 100 ECG‐triggered single‐shot images was performed ...
Yue Pan, Ning Jin, Kelvin Chow, Mario Bacher, Peter Speier, Vedat O. Yildiz, Matthew Tong, Yuchi Han, Rizwan Ahmad, Orlando P. Simonetti   +9 more
wiley   +1 more source