![]() ![]() The XP Dynamis is scanner compatible and supports top-hat distribution handpieces for improved procedural speed, safety and efficiency in a wide range of large-area treatments. The 1064 nm wavelength is proven to minimize discomfort while showing exceptional efficacy and long-term success, and significantly reducing recovery times. #Anti photonium xt charge skinNon-ablative aesthetic laser treatments are an extremely popular and lucrative market segment, and Nd:YAG lasers certainly need no introduction as the proven gold standard in areas such as hair reduction, skin rejuvenation, acne and vascular treatments, and much more. At the heart of the XP Dynamis are high-performance, non-ablative long-pulse Nd:YAG and surgical QCW Nd:YAG lasers that combine to offer an extremely wide aesthetic treatment range. So as Tom said, you could talk in terms of emission events being absorption of negative energies and absorption events being the emission of negative energies - convention and everyday experience dictate otherwise.Speed and Versatility Without Compromising Efficacyįotona's XP Dynamis aesthetic and surgical laser system is an ideal choice if you value speed for fast, high-quality aesthetic treatments without compromising efficacy. This, I guess, demonstrates why the photon is its own antiparticle: a 'negative' photon being absorbed is indistinguishible from a 'positive' photon being emitted and vice versa. If this 'negative energy' particle is indeed traveling backwards in time, then if it were to be absorbed it would look, forward in time, exactly like a positive energy particle being emitted. I believe this might be what the OP is referring to, since as I recall it should appear as if the positive particle has come from inside the black hole. one is well-like, one is saddle-like but I can't remember which way round it is Ģ) Hawking radiation, in which a pair of positive and negative energy particles are created on the event horizon of a black hole and separated by its gravity - the negative energy particle is pulled into the hole and reduces its mass and the positive energy particle is expelled away from it. I've heard of negative energy in two contexts:ġ) the curvature of space - positive energy curves space one way, negative the other. ![]() N.N.Bogolubov,A.A.Logunov,I.T.Todorov,"Introdiction to Axiomatic Quantum Field Theory",Benjamin/Cummings,NY,1975. ,therefore all negative energy unitary irreds of the restricted Poincaré group do not lead to physical states.Į.P.Wigner (1939),"On Unitary Representations of the Inhomogeneous Lorentz Group", Ann.Math., 40,149. I'm not really sure I understand lurch I've never really heard of any "negative energy" particle.Īccording to the famous analysis of the irreducible unitary representations of the Poincaré group by E.P.Wigner who published an article in 1939,QFT can accommodate,basically for any value of spin and mass,negative energy particles. ![]()
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