Search Results - "Topfer, D."

Realizing the classical XY Hamiltonian in polariton simulators by Berloff, Natalia G., Silva, Matteo, Kalinin, Kirill, Askitopoulos, Alexis, Töpfer, Julian D., Cilibrizzi, Pasquale, Langbein, Wolfgang, Lagoudakis, Pavlos G.

“…The vast majority of real-life optimization problems with a large number of degrees of freedom are intractable by classical computers, since their complexity…”
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Quantum fluids of light in all-optical scatterer lattices by Alyatkin, S., Sigurdsson, H., Askitopoulos, A., Töpfer, J. D., Lagoudakis, P. G.

“…One of the recently established paradigms in condensed matter physics is examining a system’s behaviour in artificial potentials, giving insight into phenomena…”
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Geometric frustration in polygons of polariton condensates creating vortices of varying topological charge by Cookson, Tamsin, Kalinin, Kirill, Sigurdsson, Helgi, Töpfer, Julian D., Alyatkin, Sergey, Silva, Matteo, Langbein, Wolfgang, Berloff, Natalia G., Lagoudakis, Pavlos G.

“…Vorticity is a key ingredient to a broad variety of fluid phenomena, and its quantised version is considered to be the hallmark of superfluidity. Circulating…”
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Directional planar antennae in polariton condensates by Aristov, Denis, Baryshev, Stepan, Töpfer, Julian D., Sigurðsson, Helgi, Lagoudakis, Pavlos G.

“…We report on the realization of all-optical planar microlensing for exciton–polariton condensates in semiconductor microcavities. We utilize spatial light…”
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Spontaneous Formation of Time-Periodic Vortex Cluster in Nonlinear Fluids of Light by Sitnik, Kirill A., Alyatkin, Sergey, Töpfer, Julian D., Gnusov, Ivan, Cookson, Tamsin, Sigurdsson, Helgi, Lagoudakis, Pavlos G.

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All-optical triangular and honeycomb lattices of exciton–polaritons by Alyatkin, Sergey, Sigurðsson, Helgi, Kartashov, Yaroslav V., Gnusov, Ivan, Sitnik, Kirill, Töpfer, Julian D., Lagoudakis, Pavlos G.

“…We implement an all-optically reconfigurable triangular lattice of exciton–polariton condensates in a III–V semiconductor microcavity. For this, we utilize a…”
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Controlling the Spatial Profile and Energy Landscape of Organic Polariton Condensates in Double-Dye Cavities by Putintsev, Anton D., McGhee, Kirsty E., Sannikov, Denis, Zasedatelev, Anton V., Töpfer, Julian D., Jessewitsch, Till, Scherf, Ullrich, Lidzey, David G., Lagoudakis, Pavlos G.

“…The development of high-speed, all-optical polariton logic devices underlies emerging unconventional computing technologies and relies on advancing techniques…”
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Steroidogenesis and the Influence of MAPK Activity During In Vitro Maturation of Porcine Cumulus Oocyte Complexes by Ebeling, S, Töpfer, D, Meinecke, B

“…The aim of this study was to investigate steroidogenesis within porcine cumulus oocyte complexes during in vitro maturation and to examine the possible…”
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Effect of Follicle Size on In Vitro Maturation of Pre‐Pubertal Porcine Cumulus Oocyte Complexes by Töpfer, D, Ebeling, S, Weitzel, JM, Spannbrucker, AC

“…Very small follicles (<3.0 mm diameter) are over‐represented on the surface of ovaries of non‐cycling pigs, and the oocytes collected from these follicles…”
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Bone morphogenetic protein-6 (BMP-6): mRNA expression and effect on steroidogenesis during in vitro maturation of porcine cumulus oocyte complexes by Ebeling, S, Töpfer, D, Weitzel, J M, Meinecke, B

“…Oocyte secreted factors (OSFs) have emerged as important factors for follicular development. The present study investigated the effect of the potential OSF…”
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Optical Control of Couplings in Polariton Condensate Lattices by Alyatkin, S., Töpfer, J. D., Askitopoulos, A., Sigurdsson, H., Lagoudakis, P. G.

“…We demonstrate deterministic control of the nearest and next-nearest neighbor coupling in the unit cell of a square lattice of microcavity exciton-polariton…”
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Engineering Photon Statistics in a Spinor Polariton Condensate by Baryshev, S, Zasedatelev, A, Sigurdsson, H, Gnusov, I, Töpfer, J D, Askitopoulos, A, Lagoudakis, P G

“…We implement full polarization tomography on photon correlations in a spinor exciton-polariton condensate. Our measurements reveal condensate pseudospin…”
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Observation of spin precession resonance in a stirred quantum fluid of light by Gnusov, Ivan, Baryshev, Stepan, Sigurđsson, Helgi, Sitnik, Kirill, Töpfer, Julian D., Alyatkin, Sergey, Lagoudakis, Pavlos G.

“…External driving of spins by magnetic or optical fields in different systems underpins numerous applications ranging from magnetic resonance imaging to…”
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Time-delay polaritonics by Töpfer, J. D., Sigurdsson, H., Pickup, L., Lagoudakis, P. G.

“…Non-linearity and finite signal propagation speeds are omnipresent in nature, technologies, and real-world problems, where efficient ways of describing and…”
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Antiferromagnetic Ising model in a triangular vortex lattice of quantum fluids of light by Alyatkin, Sergey, Milián, Carles, Kartashov, Yaroslav V, Sitnik, Kirill A, Gnusov, Ivan, Töpfer, Julian D, Sigurðsson, Helgi, Lagoudakis, Pavlos G

“…Vortices are topologically distinctive objects appearing as phase twists in coherent fields of optical beams and Bose-Einstein condensates. Structured networks…”
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Segmentation and quantification of bone erosions in high-resolution peripheral quantitative computed tomography datasets of the metacarpophalangeal joints of patients with rheumatoid arthritis by Töpfer, Dominique, Finzel, Stephanie, Museyko, Oleg, Schett, Georg, Engelke, Klaus

“…To develop a precise three-dimensional (3D) segmentation technique for bone erosions in high-resolution peripheral quantitative CT (HR-pQCT) datasets to…”
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Engineering spatial coherence in lattices of polariton condensates by Töpfer, J. D., Chatzopoulos, I., Sigurdsson, H., Cookson, T., Rubo, Y. G., Lagoudakis, P. G.

“…Artificial lattices of coherently coupled macroscopic states are at the heart of applications ranging from solving hard combinatorial optimization problems to…”
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Effects of epidermal growth factor on in vitro maturation kinetics of porcine oocytes from different follicle classes by Töpfer, D, Schulte, K, Meinecke, B

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Steroid hormone secretion and parthenogenetic activation of porcine cumulus oocyte complexes are governed by follicle size by Spannbrucker, A, Töpfer, D, Weitzel, J, Meinecke, B

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Control of the oscillation frequency of a vortex cluster in the trapped polariton condensate by Sitnik, Kirill A., Gnusov, Ivan, Misko, Mikhail, Töpfer, Julian D., Alyatkin, Sergey, Lagoudakis, Pavlos G.

“…An optically trapped exciton–polariton condensate forms states corresponding to excited energy levels of the confining potential. Recently, it was shown that…”
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