On the determination of pure quantum states by the homodyne detection
The methods of reconstruction of the wave function of a pure state of a quantum system by quadrature distribution measured experimentally by the homodyne detection are considered. Such distribution is called optical tomogram of a state and containes one parameter θ. Wave function of a state is deter...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Samara State Technical University
2016-03-01
|
| Series: | Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki |
| Subjects: | |
| Online Access: | https://journals.eco-vector.com/1991-8615/article/viewFile/20465/16712 |
| _version_ | 1811330289343922176 |
|---|---|
| author | Andrey I Dnestryan |
| author_facet | Andrey I Dnestryan |
| author_sort | Andrey I Dnestryan |
| collection | DOAJ |
| description | The methods of reconstruction of the wave function of a pure state of a quantum system by quadrature distribution measured experimentally by the homodyne detection are considered. Such distribution is called optical tomogram of a state and containes one parameter θ. Wave function of a state is determined exactly by its optical tomogram if last one is known for all θ. But one can obtain optical tomogram from experiment of homodyne detection only for discrete number of θ. We introduce some approximate methods of reconstructing the state by such information about its optical tomogram. |
| first_indexed | 2024-04-13T15:58:55Z |
| format | Article |
| id | doaj.art-a917930a6f7d4e938897d0642389e070 |
| institution | Directory Open Access Journal |
| issn | 1991-8615 2310-7081 |
| language | English |
| last_indexed | 2024-04-13T15:58:55Z |
| publishDate | 2016-03-01 |
| publisher | Samara State Technical University |
| record_format | Article |
| series | Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki |
| spelling | doaj.art-a917930a6f7d4e938897d0642389e0702022-12-22T02:40:36ZengSamara State Technical UniversityVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki1991-86152310-70812016-03-01201334210.14498/vsgtu146217885On the determination of pure quantum states by the homodyne detectionAndrey I Dnestryan0Moscow Institute of Physics and Technology (State University)The methods of reconstruction of the wave function of a pure state of a quantum system by quadrature distribution measured experimentally by the homodyne detection are considered. Such distribution is called optical tomogram of a state and containes one parameter θ. Wave function of a state is determined exactly by its optical tomogram if last one is known for all θ. But one can obtain optical tomogram from experiment of homodyne detection only for discrete number of θ. We introduce some approximate methods of reconstructing the state by such information about its optical tomogram.https://journals.eco-vector.com/1991-8615/article/viewFile/20465/16712quantum tomographyquantum statedensity operatorwave function |
| spellingShingle | Andrey I Dnestryan On the determination of pure quantum states by the homodyne detection Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki quantum tomography quantum state density operator wave function |
| title | On the determination of pure quantum states by the homodyne detection |
| title_full | On the determination of pure quantum states by the homodyne detection |
| title_fullStr | On the determination of pure quantum states by the homodyne detection |
| title_full_unstemmed | On the determination of pure quantum states by the homodyne detection |
| title_short | On the determination of pure quantum states by the homodyne detection |
| title_sort | on the determination of pure quantum states by the homodyne detection |
| topic | quantum tomography quantum state density operator wave function |
| url | https://journals.eco-vector.com/1991-8615/article/viewFile/20465/16712 |
| work_keys_str_mv | AT andreyidnestryan onthedeterminationofpurequantumstatesbythehomodynedetection |