Virtual particles and velocities greater than C

In summary: So no, objects cannot travel faster than the speed of light, regardless of their relative velocity.In summary, virtual particles are created due to the uncertainty principle and can sometimes become real when they receive an energy boost. This concept is also related to the evaporation of Black Holes. It is possible to create regions of space with lower amounts of charged virtual particles, which may affect electromagnetic properties and the speed of light. However, objects cannot travel faster than the speed of light, regardless of their relative velocity.
  • #1
ice109
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i know that virtual particles are a result of the uncertainty principle and that most of the time they are annihilated but i also think i read that sometimes they come into being when they receive an energy boost? I am thinking maybe an errant photon?

also I've read about velocities of greater than C observed with close proximity to a photon already traveling at C but that as soon as they (waves :confused: ) leave the vicinity of the photon that they evaporate and so essentially its pointless. the impression from the reading i got was that it was akin to being stationary versus moving a long with a cloud of gas and how being in the cloud would give you a higher kinetic energy... about this last topic i was just wonder if anyone remembers any research like this and could maybe point me in the right direction in finding it.

edit

forgive my n00bness
 
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  • #2
The idea of a virtual particle becoming real is indeed mystiftying. However, it the mechanism by which Black Holes are predicted to evaporate. Of course, this means mass from inside the Event Horizon of the Black Hole is getting outside, which pretty much demands that something has traveled faster than light.

You probably already know the basic idea; that the energy always present everywhere in the universe is constantly producing VP's in pairs, one matter and one antimatter. The two are then drawn immediately into one another where they annihilate and become energy once again. The idea fo Black Hole Radiation (and I suppose this would work in any space that is curved by gravity) is that a particular packet of anergy produces a Virtual Particle Pair, at high energy (travelling at great velocity). This VPP might come into existence at just the right distance from the center of the gravitational field so that one is just barely too close, and their speed is less than Escape Velocity, while the other VP is just far enough out that their soeed is just barely above Escape Velocity. So one particle escapes and becomes real. Once this idea is accepted, any number of other phenomina may be applied to the theory (like one VP anihilating with something else before the pair can anihilate with each other, or on gaining an energy boost greater than the magnetic attraction between the two) and a whole Pandora's Box seems to open up.
 
  • #3
Is it possible to create regions of space with a lower amount of charged virtual particles? Maybe between two plane metal plates, as in the Casimir effect?

In that case, would electromagnetic properties of space, namely mu_0 and epsilon_0, change? Having less charged particles, should epsilon_0 decrease? So should light's speed c increase?
 
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  • #4
This may be off topic a bit, but is it possible that all objects are capable of velocities faster than C, if we assume C is a relative velocity? For example if an object is traveling at a velocity of 64 mi/s, is C actually 180,064 mi/s? Are objects just unable to have acceleration values approaching the "acceleration of light"? The only problem is the incredible amount of energy it takes to accelerate 99.9999% of the speed of light. Assuming X object weighs 100 units, and is traveling at 64mi/s, it would take alittle less than 3.2 trillion units of energy to accelerate approaching the speed of light if you were impatient.

If you accelerated at a much smaller rate (half), couldn't you theoretically reach the relative speed of light, and exceed it, using the amount of energy halfway down the exponential graph of energy it takes to reach the acceleration of light? This would increase time, but decrease energy required significantly.
 
  • #5
M.q.: Whether you are stationary on earth, or on a train at 64mi/s, you will still measure the same speed for light. This is the basis of relativity theory.
 

1. What are virtual particles?

Virtual particles are particles that are thought to exist in the quantum vacuum, constantly popping in and out of existence. They are not observable directly, but their effects can be seen in certain physical phenomena.

2. Can virtual particles travel faster than the speed of light?

No, virtual particles are subject to the same speed limit as all other particles in the universe, which is the speed of light. While their existence may seem to defy this limit, they do not actually travel faster than the speed of light.

3. How can virtual particles have a velocity if they are constantly appearing and disappearing?

Virtual particles do not have a specific velocity, as they are not physical particles that can be measured in the traditional sense. Their movements are governed by quantum mechanics, and their behavior is described by mathematical equations rather than physical measurements.

4. Is it possible for a real particle to reach a velocity greater than the speed of light?

According to Einstein's theory of relativity, it is not possible for a real particle to reach or exceed the speed of light. As an object approaches the speed of light, its mass and energy increase exponentially, making it impossible to accelerate to the speed of light.

5. How do virtual particles contribute to our understanding of the universe?

Virtual particles play a crucial role in quantum field theory, which is the framework used to explain the behavior of particles at the subatomic level. They also help explain some phenomena in particle collisions and can provide insights into the nature of the quantum vacuum. Further research on virtual particles may also lead to advancements in technologies such as quantum computing.

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