Gravity-mediated gain of quantum entanglement
No experiment to date provided direct evidence for quantum features of gravitational interaction. Recently proposed tests suggest looking for generation of quantum entanglement between massive objects. Motivated by the success of cooling kilogram mirrors of the LIGO interferometer to near ground...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2019
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| Online Access: | http://hdl.handle.net/10356/77065 |
| _version_ | 1811686745828229120 |
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| author | Tham, Guo Yao |
| author2 | Tomasz Paterek |
| author_facet | Tomasz Paterek Tham, Guo Yao |
| author_sort | Tham, Guo Yao |
| collection | NTU |
| description | No experiment to date provided direct evidence for quantum features of gravitational interaction.
Recently proposed tests suggest looking for generation of quantum entanglement between massive objects.
Motivated by the success of cooling kilogram mirrors of the LIGO interferometer to near ground state, we study the entanglement dynamics between two massive objects interacting gravitationally.
In this thesis, we will focus on two setups:
1) Entanglement of two optomechanical oscillators, 2) Entanglement of two free falling objects.
We derive a figure of merit that characterises generated entanglement and entangling time, and show that squeezing of the initial state of the mirrors significantly improves the entanglement.
The derivations are supplemented with numerical evidence showing accuracy of our approximations.
All this provides a range of experimental parameters required for observation of the gravitationally-induced entanglement. |
| first_indexed | 2024-10-01T05:05:18Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/77065 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:05:18Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/770652023-02-28T23:14:25Z Gravity-mediated gain of quantum entanglement Tham, Guo Yao Tomasz Paterek School of Physical and Mathematical Sciences Tanjung Krisnanda DRNTU::Science::Physics::Atomic physics::Quantum theory No experiment to date provided direct evidence for quantum features of gravitational interaction. Recently proposed tests suggest looking for generation of quantum entanglement between massive objects. Motivated by the success of cooling kilogram mirrors of the LIGO interferometer to near ground state, we study the entanglement dynamics between two massive objects interacting gravitationally. In this thesis, we will focus on two setups: 1) Entanglement of two optomechanical oscillators, 2) Entanglement of two free falling objects. We derive a figure of merit that characterises generated entanglement and entangling time, and show that squeezing of the initial state of the mirrors significantly improves the entanglement. The derivations are supplemented with numerical evidence showing accuracy of our approximations. All this provides a range of experimental parameters required for observation of the gravitationally-induced entanglement. Bachelor of Science in Applied Physics 2019-05-05T14:07:29Z 2019-05-05T14:07:29Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/77065 en 66 p. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Atomic physics::Quantum theory Tham, Guo Yao Gravity-mediated gain of quantum entanglement |
| title | Gravity-mediated gain of quantum entanglement |
| title_full | Gravity-mediated gain of quantum entanglement |
| title_fullStr | Gravity-mediated gain of quantum entanglement |
| title_full_unstemmed | Gravity-mediated gain of quantum entanglement |
| title_short | Gravity-mediated gain of quantum entanglement |
| title_sort | gravity mediated gain of quantum entanglement |
| topic | DRNTU::Science::Physics::Atomic physics::Quantum theory |
| url | http://hdl.handle.net/10356/77065 |
| work_keys_str_mv | AT thamguoyao gravitymediatedgainofquantumentanglement |