Results 11 to 20 of about 613,352 (286)

Does a Large Ear Type Wheat Variety Benefit More From Elevated CO2 Than That From Small Multiple Ear-Type in the Quantum Efficiency of PSII Photochemistry?

open access: yesFrontiers in Plant Science, 2021
Recently, several reports have suggested that the growth and grain yield of wheat are significantly influenced by high atmospheric carbon dioxide concentration (CO2) because of it photosynthesis enhancing effects.
Yuting Li   +7 more
doaj   +1 more source

Efficient Quantum Computation with Probabilistic Quantum Gates [PDF]

open access: yesPhysical Review Letters, 2005
With a combination of the quantum repeater and the cluster state approaches, we show that efficient quantum computation can be constructed even if all the entangling quantum gates only succeed with an arbitrarily small probability $p$. The required computational overhead scales efficiently both with $1/p$ and $n$, where $n$ is the number of qubits in ...
Duan, L.-M., Kimble, H. J.
openaire   +4 more sources

EIGER2 hybrid-photon-counting X-ray detectors for advanced synchrotron diffraction experiments

open access: yesJournal of Synchrotron Radiation, 2023
The ability to utilize a hybrid-photon-counting detector to its full potential can significantly influence data quality, data collection speed, as well as development of elaborate data acquisition schemes. This paper facilitates the optimal use of EIGER2
Tilman Donath   +17 more
doaj   +1 more source

Efficient Quantum Pseudorandomness

open access: yesPhysical Review Letters, 2016
Randomness is both a useful way to model natural systems and a useful tool for engineered systems, e.g. in computation, communication and control. Fully random transformations require exponential time for either classical or quantum systems, but in many case pseudorandom operations can emulate certain properties of truly random ones.
Brandão, Fernando G. S. L.   +2 more
openaire   +5 more sources

Efficient universal quantum circuits [PDF]

open access: yesQuantum Information and Computation, 2009
Universal circuits can be viewed as general-purpose simulators for central classes of circuits and can be used to capture the computational power of the circuit class being simulated. We define and construct quantum universal circuits which are efficient and has very little overhead in simulation.
Debajyoti Bera   +3 more
openaire   +1 more source

Stochastic Energetics of Quantum Transport [PDF]

open access: yes, 2006
We examine the stochastic energetics of directed quantum transport due to rectification of non-equilibrium thermal fluctuations. We calculate the quantum efficiency of a ratchet device both in presence and absence of an external load to characterize two ...
A. Ajdari   +13 more
core   +2 more sources

Absolute quantum efficiencies

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1972
Recent developments in several areas of chemistry, laser technology, photodetector instrumentation, and calorimetry are surveyed, and their probable impact on the measurement of quantum yields is assessed. Chemical developments include: (a) synthesis and design of new luminescent molecules that could possibly serve as standards, (b) application of ...
G A, Crosby, J N, Demas, J B, Callis
openaire   +2 more sources

Pulsed homodyne Gaussian quantum tomography with low detection efficiency [PDF]

open access: yes, 2014
Pulsed homodyne quantum tomography usually requires a high detection efficiency limiting its applicability in quantum optics. Here, it is shown that the presence of low detection efficiency ($
Benatti, Fabio   +10 more
core   +1 more source

Efficient Quantum Measurement Engines

open access: yesPhysical Review Letters, 2018
5 pages, 2 ...
Elouard, Cyril, Jordan, Andrew N.
openaire   +4 more sources

Efficient quantum state tomography [PDF]

open access: yesNature Communications, 2010
Quantum state tomography-deducing quantum states from measured data-is the gold standard for verification and benchmarking of quantum devices. It has been realized in systems with few components, but for larger systems it becomes unfeasible because the number of measurements and the amount of computation required to process them grows exponentially in ...
Cramer M.   +8 more
openaire   +3 more sources

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