Where is Buddha Now?

Namaste to Buddha. How and where is Buddha now? Does he still teaching now? I am trying to understand Nibbana and where Buddha is now. What I understand is that Nibbana is a state rather than a location or place. This state has no physical body, no desire, no dukkha and no more incarnation. Many have mentioned this state appears as in empty space but I would think the "empty" is a meaning of Buddhism that is 100% free from dukkha . > Endless space is called in Atthasālini ajatākāsa, 'unentangled', i.e. > unobstructed or empty space. Why don't we realise space instead of Nibbana? In Quantum Physics, a state is a source of energy so it's quantifiable and appears as a particle wave. An energy cannot be null or void state too as the law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. Wave–particle duality Conclusion is can I say that Buddha is still teaching and around, appears as the supreme particle wave and possibly can be communicated via meditation? Any form of energy can be interfered/communicated/entangled with based on Physic theory ? > The universe encompasses everything that exists, according to our > current understanding: spacetime, forms of energy and the physical > laws that relate them, history, philosophy, mathematics and logic. > Buddhists refer to the Universe, both visible and invisible phenomena, > as the Dharma. The Origin of Meditation: Making Bonds with the Universe Anyone could verify my understanding above?