you can't,they are not real.I've read that a future theory will or may replace virtual particles? i also thought they exist for like example 1/10,000 of a second physically.
How "Real" Are Virtual Particles?
Are they a help to particle interaction or are they physically real? How come they are not observable to us? what i want to find out is if they are an artefact or not.I also know that there is a lot of debate to whether virtual particles exist in reality or not.