query: Antiparticles travelling backward through time
positive_passages.docid: 26354
positive_passages.text: Is anti-matter matter going backwards in time?
negative_passages.docid: 29952
negative_passages.text: Time-ordering vs normal-ordering and the two-point function/propagator
negative_passages.docid: 149215
negative_passages.text: Does a particle annihilate only with its antiparticle? If yes, why?
negative_passages.docid: 154151
negative_passages.text: How do single photons travel from here to there
negative_passages.docid: 92532
negative_passages.text: Conservation of Mass during Electron - Positron Annihilation
negative_passages.docid: 83175
negative_passages.text: Infinitesimal transformations for a relativistic particle
negative_passages.docid: 34400
negative_passages.text: Special Relativity - Regarding the Simultaneity of Events During the Train Paradox
negative_passages.docid: 76819
negative_passages.text: How does "warp drive" not violate Special Relativity causality constraints?
negative_passages.docid: 14922
negative_passages.text: Do tachyons move faster than light?
negative_passages.docid: 47030
negative_passages.text: Entropy as an arrow of time
negative_passages.docid: 50575
negative_passages.text: Collisions in space/vacuum
negative_passages.docid: 53258
negative_passages.text: Why exactly does the time-reversal operator need to be anti-linear?
negative_passages.docid: 125081
negative_passages.text: What is the reasoning that leads one to postulate this second form for the relativistic particle action?
negative_passages.docid: 118815
negative_passages.text: What makes matter travel along geodesics?
negative_passages.docid: 114335
negative_passages.text: Entanglement in time
negative_passages.docid: 12388
negative_passages.text: Which types of particles are affected by the wave-particle duality?
negative_passages.docid: 100530
negative_passages.text: Why does time in Minkowski's space have the opposite sign of the space coordinates?