1 “.... Although string theory and loop quantum gravity have brought many answers to the quantum gravity problem...”

2 Subjects: “...quantum gravity...”

3 Subjects: “...quantum gravity...”

4 Subjects: “...quantum gravity...”

5 Subjects: “...Quantum Gravity...”

6 “... and applications to basic models in theoretical physics (Y. Takashi), the quantum gravity and its detection...”

7 “... in classical gravity. It also explains gravitational waves in quantum gravity (in which the universe...”