In the ER=EPR theory, proposed by Juan Maldacena and Leonard Susskind, the conjecture suggests a deep connection between two seemingly distinct phenomena: Einstein-Rosen (ER) bridges, also known as wormholes, and quantum entanglement. According to this hypothesis, these two phenomena are dual descriptions of the same underlying reality.
However, it's important to note that the ER=EPR theory is still a conjecture and an active area of research. While it has gained attention and stimulated further investigations, it has not yet been proven conclusively.
Regarding negative mass, in the context of wormholes, it is often suggested that negative mass or exotic matter may be required to stabilize and maintain these structures. Negative mass would possess properties that counteract the effects of positive mass, allowing for the possibility of sustaining a traversable wormhole.
At the quantum level, the concept of negative mass is more nuanced. In the framework of classical physics, negative mass violates various energy conditions and is not observed in our universe. However, quantum field theory introduces a greater range of possibilities, including the existence of exotic states and energy conditions that may differ from classical expectations.
Currently, the availability or existence of negative mass at the quantum level is still an open question. It is an area of ongoing research and exploration within the field of theoretical physics. The ER=EPR theory itself does not provide a definitive answer to this question but suggests a possible relationship between wormholes and entanglement.