Results 51 to 60 of about 7,077 (196)

Chemical oscillation in ultracold chemistry

Europhysics Letters
Abstract We demonstrate the occurrence of oscillatory reactions in the ultra-cold chemistry of atom-molecular Bose-Einstein condensate. Nonlinear oscillations in the mean-field dynamics occur for a specific range of elliptic modulus, giving rise to both in- and out-phase modulations in the atom-molecule population density.
Modak, Subhrajit, Das, Priyam, Mishra, Challenger, Panigrahi, Prasanta K.   +3 more
openaire   +2 more sources

Observation of Linear and Nonlinear Light Trapping on Topological Dislocations

Laser &Photonics Reviews, EarlyView.
Topological dislocations are global lattice defects found in various systems ranging from crystals to photonic lattices. This work reports the first observation at optical frequencies of linear modes with tunable localization bound to edge dislocations and their nonlinear counterparts ‐ dislocation solitons. These results reveal an intriguing interplay
S. K. Ivanov, A. V. Kireev, K. Sabour, N. S. Kostyuchenko, S. A. Zhuravitskii, N. N. Skryabin, I. V. Dyakonov, A. A. Kalinkin, V. O. Kompanets, S. P. Kulik, S. V. Chekalin, A. Ferrando, V. N. Zadkov, Y. V. Kartashov   +13 more
wiley   +1 more source

Polaritonic quantum matter

Nanophotonics, Volume 14, Issue 23, Page 3723-3760, 02 November 2025.
Abstract Polaritons are quantum mechanical superpositions of photon states with elementary excitations in molecules and solids. The light–matter admixture causes a characteristic frequency‐momentum dispersion shared by all polaritons irrespective of the microscopic nature of material excitations that could entail charge, spin, lattice or orbital ...
D.N. Basov, Ana Asenjo‐Garcia, P. James Schuck, Xiaoyang Zhu, Angel Rubio, Andrea Cavalleri, Milan Delor, Michael M. Fogler, Mengkun Liu   +8 more
wiley   +1 more source

Electronic Structure, Spectroscopy, Cold Ion–Atom Elastic Collision Properties, and Photoassociation Formation Prediction of the (MgCs)⁺ Molecular Ion

Atoms, 2023
In this paper, we extensively study the electronic structure, interactions, and dynamics of the (MgCs)+ molecular ion. The exchanges between the alkaline atom and the low-energy cationic alkaline earths, which are important in the field of cold and ...
Mohamed Farjallah, Dibyendu Sardar, Bimalendu Deb, Hamid Berriche   +3 more
doaj   +1 more source

Chemical reactivity of ultracold polar molecules: investigation of H + HCl and H + DCl collisions

, 2004
Quantum scattering calculations are reported for the H+HCl(v,j=0) and H+DCl(v,j=0) collisions for vibrational levels v=0-2 of the diatoms. Calculations were performed for incident kinetic energies in the range 10-7 to 10-1 eV, for total angular momentum ...
104, 302, 91, Aker, Aker, Alexander, Alexander, Althorpe, Aoiz, Aoiz, Balakrishnan, Balakrishnan, Balakrishnan, Balakrishnan, Balakrishnan, Balakrishnan, Barclay, Barenco, Bartenstein, Bethlem, Bethlem, Bian, Bodo, Branchett, Brennen, Brownsword, Chen, Crompvoets, Cubizolles, deCarvalho, DeMille, Fioretti, Friedrich, Gabbanini, Greiner, Hanf, Heinzen, Hope, Kajita, Kerman, Kerman, Lara, Maddi, Mancini, Manthe, N. Balakrishnan, Nikolov, P. F. Weck, Parker, Pichler, Platzman, Regal, Shen, Skouteris, Skouteris, Sold�n, Stoecklin, Taatjes, Takekoshi, Tilford, Timmermans, Volpi, Wei, Weinstein, Wigner, Yao, Zwierlein   +66 more
core   +1 more source

Ion-atom hybrid systems [PDF]

, 2014
The study of interactions between simultaneously trapped cold ions and atoms has emerged as a new research direction in recent years. The development of ion-atom hybrid experiments has paved the way for investigating elastic, inelastic and reactive ...
Willitsch, Stefan
core   +3 more sources

Importance of Geometric Phase Effects in Ultracold Chemistry

The Journal of Physical Chemistry A, 2015
It is demonstrated that the inclusion of the geometric phase has an important effect on ultracold chemical reaction rates. The effect appears in rotationally and vibrationally resolved integral cross sections as well as cross sections summed over all product quantum states.
Hazra, Jisha, Kendrick, Brian K., Naduvalath, Balakrishnan   +2 more
openaire   +4 more sources

Ultracold Nonreactive Molecules in an Optical Lattice: Connecting Chemistry to Many-Body Physics [PDF]

Physical Review Letters, 2016
4 pages+refs, 3 figures; 2.5 pages+1 figure Supplemental ...
Doçaj, A, Wall, ML, Mukherjee, R, Hazzard, KRA   +3 more
openaire   +5 more sources

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

Advanced 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, Jiaru Zhang, Guanghui Ren, Bao Yue Zhang, Jian Zhen Ou   +4 more
wiley   +1 more source

Vibrational energy transfer in ultracold molecule - molecule collisions

, 2008
We present a rigorous study of vibrational relaxation in p-H2 + p-H2 collisions at cold and ultracold temperatures and identify an efficient mechanism of ro-vibrational energy transfer.
Goulven Quéméner, J. D. Weinstein, K. Takayanagi, N. Balakrishnan, Naduvalath Balakrishnan, Roman V. Krems   +5 more
core   +1 more source