Results 51 to 60 of about 1,078,579 (226)

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

Advanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi, João Pedro Ferreira Assunção, Michael Bauer, Matthias Diethelm, Wei‐Hsu Hu, Mohammad Jafarpour, Roland Widmer, Antonia Neels, Dimitrios Sapalidis, Bruno F. B. Silva, Roland Hany, Frank Nüesch, Anna Painelli   +12 more
wiley   +1 more source

Realization of a pulsed optically pumped Rb clock with a frequency stability below $$10^{-15}$$ 10 - 15

Scientific Reports, 2023
We present the frequency stability performances of a vapor cell Rb clock based on the pulsed optically pumping (POP) technique. The clock has been developed in the frame of a collaboration between INRIM and Leonardo SpA, aiming to realize a space ...
Michele Gozzelino, Salvatore Micalizio, Claudio E. Calosso, Jacopo Belfi, Adalberto Sapia, Marina Gioia, Filippo Levi   +6 more
doaj   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Towards practical quantum metrology with photon counting [PDF]

, 2016
Quantum metrology aims to realise new sensors operating with the ultimate in precision measurement. However, optical loss, the complexity of proposed metrology schemes, and interferometric instability each prevent the realisation of practical quantum ...
Saunders, Dylan J, Matthews, Jonathan, O'Brien, Jeremy L, Durkin, Gabriel A, Matthews, Jonathan CF, Cable, Hugo, Shadbolt, Peter J, Zhou, Xiao-Qi, Pryde, Geoff J, Shadbolt, Peter, Pryde, Geoffrey, Saunders, Dylan   +11 more
core   +1 more source

Quantum Metrology in the Finite-Sample Regime

PRX Quantum
In quantum metrology, a major application of quantum technologies, the ultimate precision of estimating an unknown parameter is often stated in terms of the Cramér-Rao bound.
Johannes Jakob Meyer, Sumeet Khatri, Daniel Stilck França, Jens Eisert, Philippe Faist   +4 more
doaj   +1 more source

Measuring the Hall Effect in Hysteretic Materials

Advanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya, Anthony Voyemant, Sudipta Chatterjee, Scott B. Lee, Grigorii Skorupskii, Connor J. Pollak, Leslie M. Schoop   +6 more
wiley   +1 more source

Differential Evolution for Many-Particle Adaptive Quantum Metrology [PDF]

, 2013
We devise powerful algorithms based on differential evolution for adaptive many-particle quantum metrology. Our new approach delivers adaptive quantum metrology policies for feedback control that are orders-of-magnitude more efficient and surpass the few-
Crosnier, C., Perarnau- Llobet, M., Lovett, N.B., Sanders, B.   +3 more
core   +2 more sources

Machine Learning for Quantum Metrology [PDF]

11th Italian Quantum Information Science conference (IQIS2018), 2019
Phase estimation represents a significant example to test the application of quantum theory for enhanced measurements of unknown physical parameters. Several recipes have been developed, allowing to define strategies to reach the ultimate bounds in the asymptotic limit of a large number of trials. However, in certain applications it is crucial to reach
Spagnolo, Nicolò, Lumino, Alessandro, Polino, Emanuele, Rab, Adil S., Wiebe, Nathan, Sciarrino, Fabio   +5 more
openaire   +2 more sources

Data‐Driven Materials Science for Energy‐Sustainable Applications

Advanced Materials, EarlyView.
Data‐driven approaches powered by artificial intelligence are transforming materials discovery for energy sustainability. This review examines how auto‐generated high‐quality materials databases and domain‐specific language models accelerate research in photovoltaics, thermoelectrics, batteries and magnetic materials. Applications involve extraction of
Jacqueline M. Cole
wiley   +1 more source

Quantum metrology in the Kerr metric [PDF]

Physical Review D, 2019
A surprising feature of the Kerr metric is the anisotropy of the speed of light. The angular momentum of a rotating massive object causes co- and counter-propagating light paths to move at faster and slower velocities, respectively as determined by a far-away clock.
Kish, S. P., Ralph, T. C.
openaire   +4 more sources