Experiments with Individual Photons and Atoms Confirm the Fundamentals of Quantum Mechanics and Quantum Optics

2013 ◽  
pp. 30-39
Author(s):  
L.P. Yatsenko ◽  
Keyword(s):  
Quantum Mechanics ◽  
Quantum Optics ◽  
Fundamentals Of Quantum Mechanics

scholarly journals Twenty Years of Quantum State Teleportation at the Sapienza University in Rome

Entropy ◽  
2019 ◽  
Vol 21 (8) ◽  
pp. 768 ◽  
Author(s):  
Francesco De De Martini ◽  
Fabio Sciarrino
Keyword(s):  
Quantum Mechanics ◽  
Quantum Optics ◽  
Quantum State ◽  
Quantum Teleportation ◽  
Feed Forward ◽  
Unknown Quantum State ◽  
University Of Rome ◽  
The University ◽  
First Time

Quantum teleportation is one of the most striking consequence of quantum mechanics and is defined as the transmission and reconstruction of an unknown quantum state over arbitrary distances. This concept was introduced for the first time in 1993 by Charles Bennett and coworkers, it has then been experimentally demonstrated by several groups under different conditions of distance, amount of particles and even with feed forward. After 20 years from its first realization, this contribution reviews the experimental implementations realized at the Quantum Optics Group of the University of Rome La Sapienza.

scholarly journals Special Issue on Quantum Optics for Fundamental Quantum Mechanics

2020 ◽  
Vol 10 (10) ◽  
pp. 3655
Author(s):  
Marco Genovese ◽  
Marco Gramegna
Keyword(s):  
Quantum Mechanics ◽  
Quantum Optics ◽  
Turn Of The Century ◽  
Special Issue ◽  
Quantum Revolution

With the last turn of the century, physics has experienced the transition from the first to the second quantum revolution [...]

scholarly journals Wave Function Collapse in Atomic Physics

1993 ◽  
Vol 46 (1) ◽  
pp. 77 ◽  
Author(s):  
DT Pegg
Keyword(s):  
Wave Function ◽  
Quantum Mechanics ◽  
Quantum Optics ◽  
Phase Difference ◽  
Atomic Physics ◽  
Single Photon ◽  
Single Atom ◽  
Considerable Time ◽  
Wave Function Collapse ◽  
Statistical Results

Wave function collapse has been a contentious concept in quantum mechanics for a considerable time. Here we show examples of how the concept can be used to advantage in predicting the statistical results of three experiments in atomic physics and quantum optics: photon antibunching, single-photon phase difference states and interrupted single-atom fluorescence. We examine the question of whether or not collapse is 'really' a physical process, and discuss the consequences of simply omitting it but including the observer as a part of the overall system governed by the laws of quantum mechanics. The resulting entangled world does not appear to be inconsistent with experience.

scholarly journals Emergence of the Born rule in quantum optics

Quantum ◽  
2020 ◽  
Vol 4 ◽  
pp. 350
Author(s):  
Brian R. La Cour ◽  
Morgan C. Williamson
Keyword(s):  
Quantum Mechanics ◽  
Data Analysis ◽  
Quantum Optics ◽  
Quantum Electrodynamic ◽  
Deterministic Model ◽  
Born Rule ◽  
Photon Detection ◽  
Classical Physics ◽  
Intensity Threshold ◽  
Classical Boundary

The Born rule provides a fundamental connection between theory and observation in quantum mechanics, yet its origin remains a mystery. We consider this problem within the context of quantum optics using only classical physics and the assumption of a quantum electrodynamic vacuum that is real rather than virtual. The connection to observation is made via classical intensity threshold detectors that are used as a simple, deterministic model of photon detection. By following standard experimental conventions of data analysis on discrete detection events, we show that this model is capable of reproducing several observed phenomena thought to be uniquely quantum in nature, thus providing greater elucidation of the quantum-classical boundary.

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