Results 81 to 90 of about 7,140 (198)

Experimental and Theoretical Investigation of the Crossover from the Ultracold to the Quasiclassical Regime of Photodissociation

open access: yes, 2018
At ultralow energies, atoms and molecules undergo collisions and reactions that are best described in terms of quantum mechanical wave functions. In contrast, at higher energies these processes can be understood quasiclassically. Here, we investigate the
Kondov, S. S.   +6 more
core   +1 more source

Ultracold molecules strongly coupled to a nanophotonic crystal: an universal platform for ultracold chemistry experiments

open access: yesJournal of Physics: Conference Series, 2017
We develop a novel platform for the study of ultracold chemical reactions and quantum information protocols based on the strong coupling between ultracold molecules and a nanophotonic device.
J. Pérez-Ríos, M. Kim, C.-L. Hung.
openaire   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

open access: yesAdvanced Optical Materials, Volume 13, Issue 31, November 5, 2025.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou   +4 more
wiley   +1 more source

Dispersion of First Sound in a Weakly Interacting Ultracold Fermi Liquid

open access: yesAnnalen der Physik, Volume 537, Issue 11, November 2025.
 The weak‐interaction, low‐temperature region of the phase diagram of a Fermi gas the so‐called Fermi liquid regime, which has been somewhat overlooked in ultracold gases‐is investigated. Precise and measurable predictions are presented for the viscosity and dispersion of first sound to leading order in the scattering length.
Thomas Repplinger   +4 more
wiley   +1 more source

Coherent Control of Ultracold Collisions with Chirped Light: Direction Matters

open access: yes, 2006
We demonstrate the ability to coherently control ultracold atomic Rb collisions using frequency-chirped light on the nanosecond time scale. For certain center frequencies of the chirp, the rate of inelastic trap-loss collisions induced by negatively ...
H. J. Metcalf   +8 more
core   +1 more source

Coherence, Transport, and Chaos in 1D Bose–Hubbard Model: Disorder vs. Stark Potential

open access: yesFortschritte der Physik, Volume 73, Issue 11, November 2025.
Quantum coherence and criticality in finite Bose–Hubbard chains are investigated using exact diagonalization. Thermal fluctuations, Stark potential, and disorder reshape coherence, visibility, and superfluid response. Finite‐size systems show signatures of quantum criticality, with disorder suppressing global superfluidity but preserving local ...
Asad Ali   +8 more
wiley   +1 more source

Density functional theory for strongly-correlated bosonic and fermionic ultracold dipolar and ionic gases

open access: yes, 2015
We introduce a density functional formalism to study the ground-state properties of strongly-correlated dipolar and ionic ultracold bosonic and fermionic gases, based on the self-consistent combination of the weak and the strong coupling limits. Contrary
Bjerlin, Johannes,   +8 more
core   +1 more source

Additive Manufacturing for Advanced Quantum Technologies

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 11, November 2025.
Additive manufacturing has disruptive potential to enable quantum technology to be widely used in real‐world applications. In this review, we summarize the most important AM techniques that enable practical advance and fascinating opportunities for quantum technologies.
F. Wang   +9 more
wiley   +1 more source

Analytical Solutions of the Driven Time‐Dependent Jaynes–Cummings Model

open access: yesAnnalen der Physik, Volume 537, Issue 10, October 2025.
Following the great strides made in the last decade towards the control and tunability of physical parameters in cavity quantum electrodynamics, this study presents new solutions to the dynamics of the time‐dependent Jaynes–Cummings model with variable external classical fields acting on the two‐level system and the quantized field mode.
Antonio Vidiella‐Barranco   +5 more
wiley   +1 more source

An Optical Tweezer Array of Ultracold Molecules

open access: yes, 2019
Arrays of single ultracold molecules promise to be a powerful platform for many applications ranging from quantum simulation to precision measurement. Here we report on the creation of an optical tweezer array of single ultracold CaF molecules.
Anderegg, Loïc   +6 more
core   +1 more source

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