In quantum mechanics, particles have a new type of probabilistic property, which is quantum wave probability. Corresponding to this new probability, the particle has the property of quantum wave entropy, and it has the property of quantum wave temperature. Based on the quantum wave entropy, the Unruh formula, the black hole entropy formula, and the Verlinde entropy gravitational formula can be easily derived. It proves that these three formulas are not independent of each other, but are related to each other. These three formulas have the same physical origin, which is quantum wave entropy. The quantum wave temperature has similar properties to the Unruh temperature. The quantum wave temperature is not only directly proportional to acceleration, but also inversely proportional to velocity. The Unruh temperature is just a light speed case of quantum wave temperatures. Compared to the Unruh temperature, the quantum wave temperature is significantly larger and easier to test experimentally. All experiments to test the Unruh effect can be used to test the theory of quantum wave entropy. We can use experiments to test whether the theory is true. The quantum wave entropy can solve the contradiction between the time reversal symmetry of the dynamical equation and the law of entropy increase. The action corresponds to quantum wave entropy. The least action principle corresponds to the stationary quantum wave entropy principle. The quantum wave entropy creates a bridge between the dynamical equations and thermodynamics.