| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2014: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2013: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
|
|---|
| Outline of Final Research Achievements |
Entanglement entropy measures the amount of quantum entanglement, which is a fundamental property of quantum theory, The gauge/gravity correspondence (AdS/CFT correspondence) tells us that the entanglement entropy is computed as an area of gravitational spacetime. This strongly suggests that a spacetime in a gravitational theory can be interpreted as a collections of bits of quantum entanglement. To study this correspondence, we computed the entanglement entropy for excited state in many examples of quantum systems (especially conformal field theories) by generalizing the replica method. We showed that the dynamics of entanglement entropy is equivalent to that of gravitational theories including Einstein equation.
|
