A
A. Dreismann
Researcher at University of Cambridge
Publications - 12
Citations - 1228
A. Dreismann is an academic researcher from University of Cambridge. The author has contributed to research in topics: Polariton & Phase transition. The author has an hindex of 10, co-authored 12 publications receiving 929 citations. Previous affiliations of A. Dreismann include Technical University of Berlin.
Papers
More filters
Journal ArticleDOI
Single-molecule optomechanics in “picocavities”
Felix Benz,Mikolaj K. Schmidt,A. Dreismann,Rohit Chikkaraddy,Yao Zhang,Angela Demetriadou,Cloudy Carnegie,Hamid Ohadi,Bart de Nijs,Ruben Esteban,Javier Aizpurua,Jeremy J. Baumberg +11 more
TL;DR: This work found that individual atomic features inside the gap of a plasmonic nanoassembly can localize light to volumes well below 1 cubic nanometer, enabling optical experiments on the atomic scale, and sets the basis for developing nanoscale nonlinear quantum optics on the single-molecule level.
Journal ArticleDOI
Optical Superfluid Phase Transitions and Trapping of Polariton Condensates
Peter Cristofolini,A. Dreismann,Gabriel Christmann,Guido Franchetti,Natalia G. Berloff,Natalia G. Berloff,P. Tsotsis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +11 more
TL;DR: This work directly image persistently circulating superfluid and shows how flows of light-matter quasiparticles are dominated by the quantum pressure in such configurable laser-written potential landscapes.
Journal ArticleDOI
A sub-femtojoule electrical spin-switch based on optically trapped polariton condensates
A. Dreismann,Hamid Ohadi,Yago del Valle-Inclan Redondo,Ryan Balili,Yuri G. Rubo,S. I. Tsintzos,George Deligeorgis,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +12 more
TL;DR: The nonlinear spin dynamics offers an alternative route to switching, allowing us to realize an electrical spin-switch exhibiting ultralow switching energies below 0.5 fJ, laying the foundation for development of devices based on the electro-optical control of coherent spin ensembles on a chip.
Journal ArticleDOI
Coupled counterrotating polariton condensates in optically defined annular potentials
A. Dreismann,Peter Cristofolini,Ryan Balili,Gabriel Christmann,Florian Pinsker,Natasha G. Berloff,Zacharias Hatzopoulos,Pavlos G. Savvidis,Jeremy J. Baumberg +8 more
TL;DR: The ability to precisely control the structure of the petal condensates both by carefully modifying the excitation geometry as well as perturbing the system on ultrafast timescales to reveal unexpected superfluid dynamics is demonstrated.
Journal ArticleDOI
Spontaneous Spin Bifurcations and Ferromagnetic Phase Transitions in a Spinor Exciton-Polariton Condensate
Hamid Ohadi,A. Dreismann,Yuri G. Rubo,Florian Pinsker,Florian Pinsker,Y. del Valle-Inclan Redondo,S. I. Tsintzos,Zacharias Hatzopoulos,Zacharias Hatzopoulos,Pavlos G. Savvidis,Pavlos G. Savvidis,Pavlos G. Savvidis,Jeremy J. Baumberg +12 more
TL;DR: In this paper, it was shown how a polariton condensate acts as an optical spin memory that can be rapidly flipped, which can store bits of information and is characterized by long lifetimes.