When a photon is created out of the quantum vacuum fluctuation, it produces zero energy. To do that, the photon and the anti photon are created in a pair.
This is one of the most counterintuitive, yet, one of the most important principles in quantum mechanics: that vacuum is by no means empty nothingness. In fact, the vacuum is full of various particles that are continuously fluctuating in and out of existence. They appear, exist for a brief moment and then disappear again. Since their existence is so fleeting, they are usually referred to as virtual particles.
The pair of photons must be opposites of each other. For a photon, this means that the pair must have one member as left handed and the other member of the pair as right handed. When these to waveforms are added together, their sum must result in zero energy.
Scientists create light from vacuum
When a virtual photon pair is created near a black hole, one photon of the pair is absorbed by the black hole and the other exits to the far field as hawking radiation. The Bose condensate of polaritons act identically like a black hole. In this mode, The Surface Plasmon Polariton (SPP) condensate can extract both right and left handed photons from the quantum vacuum
Any light that is generated by a polariton condensate is derived from vacuum energy. The SPP can store both right and left handed photons in two counterrotating currents.
The Polariton condensate will produce mesons from this inflow of vacuum energy into the "Electromagnetic Black Hole". This condensate will also produce both light and heat as Hawking Radiation.
Black Holes and Wormholes in spinor polariton condensates
Observation of self-amplifying Hawking radiation in an analog black hole laser