scholarly journals How to Convert One Green Photon Into Two Locomotives of Momentum

2021 ◽  
Vol 2021 (09) ◽  
pp. 0930
Author(s):  
Terry Bollinger
Keyword(s):  
Quantum Mechanics ◽  
Energy Conservation ◽  
Single Photon ◽  
Green Light ◽  
Linear Momentum ◽  
Photon Momentum

The physics of photon momentum are straightforward mathematically but can produce surprisingly counterintuitive outcomes. A few simple calculations show how a single photon of green light can, in principle, impart two locomotive engines’ worth of momentum without violating energy conservation. The calculation is one example of why quantum mechanics needs better accounting of linear momentum.

scholarly journals On the quantum-mechanics of a single photon

2018 ◽  
Vol 59 (11) ◽  
pp. 112302 ◽  
Author(s):  
Michael K.-H. Kiessling ◽  
A. Shadi Tahvildar-Zadeh
Keyword(s):  
Quantum Mechanics ◽  
Single Photon

Quantum Mechanics in the Single Photon Laboratory

2020 ◽  
Author(s):  
Muhammad Hamza Waseem ◽  
Faizan-e-Ilahi ◽  
Muhammad Sabieh Anwar
Keyword(s):  
Quantum Mechanics ◽  
Single Photon

scholarly journals Combination of PDT and NOPDT with a Tailored BODIPY Derivative

Antioxidants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 531 ◽  
Author(s):  
Loretta Lazzarato ◽  
Elena Gazzano ◽  
Marco Blangetti ◽  
Aurore Fraix ◽  
Federica Sodano ◽  
...  
Keyword(s):  
Cancer Cell ◽  
Single Photon ◽  
Direct Detection ◽  
Green Light ◽  
Treatment Modalities ◽  
Suitable Model ◽  
Photon Excitation ◽  
Biological Studies ◽  
Key Species ◽  
Anticancer Treatment

The engineering of photosensitizers (PS) for photodynamic therapy (PDT) with nitric oxide (NO) photodonors (NOPD) is broadening the horizons for new and yet to be fully explored unconventional anticancer treatment modalities that are entirely controlled by light stimuli. In this work, we report a tailored boron-dipyrromethene (BODIPY) derivative that acts as a PS and a NOPD simultaneously upon single photon excitation with highly biocompatible green light. The photogeneration of the two key species for PDT and NOPDT, singlet oxygen (1O2) and NO, has been demonstrated by their direct detection, while the formation of NO is shown not to be dependent on the presence of oxygen. Biological studies carried out using A375 and SKMEL28 cancer cell lines, with the aid of suitable model compounds that are based on the same BODIPY light harvesting core, unambiguously reveal the combined action of 1O2 and NO in inducing amplified cancer cell mortality exclusively under irradiation with visible green light.

Correlation optics at the single-photon level: device physics and quantum mechanics

2002 ◽  
Author(s):  
William T. Rhodes ◽  
Angela M. Guzman ◽  
Jean-Pierre Goedgebuer
Keyword(s):  
Quantum Mechanics ◽  
Single Photon ◽  
Device Physics

scholarly journals Direct counterfactual communication via quantum Zeno effect

2017 ◽  
Vol 114 (19) ◽  
pp. 4920-4924 ◽  
Author(s):  
Yuan Cao ◽  
Yu-Huai Li ◽  
Zhu Cao ◽  
Juan Yin ◽  
Yu-Ao Chen ◽  
...  
Keyword(s):  
Wave Function ◽  
Quantum Mechanics ◽  
Theoretical Study ◽  
Single Photon ◽  
Single Photon Source ◽  
Quantum Zeno Effect ◽  
Channel One ◽  
Zeno Effect ◽  
Wave Particle Duality ◽  
Photon Source

Intuition from our everyday lives gives rise to the belief that information exchanged between remote parties is carried by physical particles. Surprisingly, in a recent theoretical study [Salih H, Li ZH, Al-Amri M, Zubairy MS (2013) Phys Rev Lett 110:170502], quantum mechanics was found to allow for communication, even without the actual transmission of physical particles. From the viewpoint of communication, this mystery stems from a (nonintuitive) fundamental concept in quantum mechanics—wave-particle duality. All particles can be described fully by wave functions. To determine whether light appears in a channel, one refers to the amplitude of its wave function. However, in counterfactual communication, information is carried by the phase part of the wave function. Using a single-photon source, we experimentally demonstrate the counterfactual communication and successfully transfer a monochrome bitmap from one location to another by using a nested version of the quantum Zeno effect.

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 Direct Relativistic Extension of the Madelung-de-Broglie-Bohm Reformulations of Quantum Mechanics and Quantum Hydrodynamics

2021 ◽  
Author(s):  
Arquimedes Ruiz-Columbié ◽  
Luis Grave de Peralta
Keyword(s):  
Quantum Mechanics ◽  
Kinetic Energy ◽  
Relativistic Quantum ◽  
Free Particle ◽  
Linear Momentum ◽  
Relativistic Quantum Mechanics ◽  
Quantum Hydrodynamics ◽  
Relativistic Extension ◽  
Basic Equations ◽  
De Broglie Bohm

Abstract Using a Schrödinger-like equation, which describes a particle with mass and spin-0 and with the correct relativistic relation between its linear momentum and kinetic energy, the basic equations of the non-relativistic quantum mechanics with trajectories and quantum hydrodynamics are extended to the relativistic domain. Some simple but instructive free particle examples are discussed.

Simplest Quantum Devices: Polarizers and Beam Splitters

2020 ◽  
pp. 137-153
Author(s):  
M. Suhail Zubairy
Keyword(s):  
Quantum Mechanics ◽  
Electromagnetic Wave ◽  
Single Photon ◽  
Polarized Light ◽  
Polarization Property ◽  
Quantum Devices ◽  
Beam Splitters ◽  
Electric And Magnetic Fields ◽  
Basic Features ◽  
Polarization Of Light

Maxwell showed that light consists of electric and magnetic fields that oscillate in directions perpendicular to the direction of propagation. Associated with this picture of light as an electromagnetic wave is an important property—the polarization of light. The polarization of light is related to the direction of oscillation of the electric field in an electromagnetic wave. In this chapter, the basic principles of quantum mechanics are discussed by studying the polarization property of a single photon. First the properties of a polarizer are presented and Malus’ law for polarized light is derived. Next it is shown that the basic features of quantum mechanics can be understood via an analysis of a single photon passing through a polarizer. This simple system allows an introduction of Dirac’s ket and bra notations for a quantum state. Finally the transformation properties of the quantum beam splitter and the polarization beam splitters are discussed.

Single-Photon Momentum Displacement in Resonator Array with Optomechanics

2016 ◽  
Vol 55 (10) ◽  
pp. 4412-4422 ◽  
Author(s):  
T. Tian ◽  
Q. Li ◽  
Lan Zhou ◽  
L. J. Song
Keyword(s):  
Single Photon ◽  
Photon Momentum
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