Feb 18, 2019 · Virtual particles are a mathematical device used in perturbation expansions of the S-operator (transition matrix) of an interaction in quantum field theory.

Apr 6, 2016 · As discussed in detail in the companion article, virtual particles are defined as (intuitive imagery for) internal lines in a Feynman diagram.

Mar 28, 2016 · There is considerable confusion about various notions around the concept of particles of subatomic size, and about the notion of a virtual particle.

Apr 6, 2016 · A. Neumaier submitted a new PF Insights post Misconceptions about Virtual Particles Continue reading the Original PF Insights Post.

Jun 4, 2010 · Hey, Virtual Particles do not break the law that energy cannot be created or destroyed. This is because Virtual Particles only "borrow" the energy for a very short amount of time. In fact, it's so short that we can't observe them. They actually arise from time/energy uncertainty principle.

Jul 13, 2003 · The issue arises whether virtual particles can be considered to be "real" in the same sense that photons of light can be. So exactly when is a photon real and when is it virtual, and do virtual photons have as much right to be thought of as existing as "real" ones?

May 31, 2004 · Since virtual particles pertain negative energy and mass in vacuum, at the instant a virtual particle appears, another "real" particle would also appear in another place in the system to balance the amount of energy in the system.

Jun 30, 2011 · However, it's also worth noting that virtual particles only arise in perturbative treatments of theories that are too complex to solve exactly, and are considered to be mathematical artifacts by many physicists. You might try asking over in the particle physics forum to see if you get a more satisfactory answer there.

Dec 5, 2011 · Virtual particles are important in understanding and predicting the behavior of particles in quantum field theory, but they do not have any direct practical applications. Are antiparticles and virtual particles related in any way?

Nov 7, 2016 · This Insight Article is a sequel of the Insight Articles ” The Physics of Virtual Particles ” and “ Misconceptions about Virtual Particles “ which make precise what a virtual particle is and what being real means, document some of the liberties taken in physics textbooks in the use of this concept, and mention the most prominent misuses. A further Insight Article, ” …