Machine learning meets quantum foundations: A brief survey

AVS Quantum Science American Vacuum Society 2:3 (2020) 034101

Authors:

Kishor Bharti, Tobias Haug, Vlatko Vedral, Leong-Chuan Kwek

Emergence of Constructor-based Irreversibility in Quantum Systems: Theory and Experiment

(2020)

Authors:

Chiara Marletto, Vlatko Vedral, Laura Knoll, Fabrizio Piacentini, Ettore Bernardi, Enrico Rebufello, Alessio Avella, Marco Gramegna, Ivo Pietro Degiovanni, Marco Genovese

Spacetime as a Tightly Bound Quantum Crystal

(2020)

Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots

Nano Research Springer 14 (2020) 108-113

Authors:

Youngsin Park, Guanhua Ying, Atanu Jana, Vitaly Osokin, Claudius Kocher, Tristan Farrow, Robert A Taylor, Kwang S Kim

Abstract:

Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping.

Transforming pure and mixed states using an NMR quantum homogeniser

(2020)

Authors:

Maria Violaris, Gaurav Bhole, Jonathan A Jones, Vlatko Vedral, Chiara Marletto