标题： 非计量与物质之间的新耦合 显示英文标题

标题： Novel couplings between nonmetricity and matter

摘要： 我们提出了一种新的引力理论，即对称平移引力的扩展。 这是通过引入一类新理论实现的，其中非度量性$Q$非最小地耦合到物质拉格朗日量。 这种非最小耦合导致能动张量的非守恒，并由此产生额外的力。 我们还介绍了几个宇宙学应用。 显示英文摘要

摘要： We present a novel theory of gravity, namely, an extension of symmetric teleparallel gravity. This is done by introducing a new class of theories where the nonmetricity $Q$ is coupled nonminimally to the matter Lagrangian. This nonminimal coupling entails the nonconservation of the energy-momentum tensor, and consequently the appearance of an extra force. We also present several cosmological applications.