Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit
The emission rate of entangled photons from cascaded few-level systems is limited by the dynamics of the radiative transitions. Here, we overcome the continuous driving limit for a semiconductor quantum dot via an active reset of the radiative cascade. We show theoretically and experimentally the dr...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-11-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043292 |
| _version_ | 1827285905846566912 |
|---|---|
| author | Jonathan R. A. Müller R. Mark Stevenson Joanna Skiba-Szymanska Ginny Shooter Jan Huwer Ian Farrer David A. Ritchie Andrew J. Shields |
| author_facet | Jonathan R. A. Müller R. Mark Stevenson Joanna Skiba-Szymanska Ginny Shooter Jan Huwer Ian Farrer David A. Ritchie Andrew J. Shields |
| author_sort | Jonathan R. A. Müller |
| collection | DOAJ |
| description | The emission rate of entangled photons from cascaded few-level systems is limited by the dynamics of the radiative transitions. Here, we overcome the continuous driving limit for a semiconductor quantum dot via an active reset of the radiative cascade. We show theoretically and experimentally the driving regime to enable the generation of entangled photon pairs with higher fidelity and emission rate than the optimum continuously driven state. Finally, we electrically generate entangled photon pairs with an average fidelity of (79.5±1.1)% at a record clock rate of 1.15 GHz. |
| first_indexed | 2024-04-24T10:22:34Z |
| format | Article |
| id | doaj.art-364b44eacf784e80b06a77da95f4275d |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:22:34Z |
| publishDate | 2020-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-364b44eacf784e80b06a77da95f4275d2024-04-12T17:04:26ZengAmerican Physical SocietyPhysical Review Research2643-15642020-11-012404329210.1103/PhysRevResearch.2.043292Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limitJonathan R. A. MüllerR. Mark StevensonJoanna Skiba-SzymanskaGinny ShooterJan HuwerIan FarrerDavid A. RitchieAndrew J. ShieldsThe emission rate of entangled photons from cascaded few-level systems is limited by the dynamics of the radiative transitions. Here, we overcome the continuous driving limit for a semiconductor quantum dot via an active reset of the radiative cascade. We show theoretically and experimentally the driving regime to enable the generation of entangled photon pairs with higher fidelity and emission rate than the optimum continuously driven state. Finally, we electrically generate entangled photon pairs with an average fidelity of (79.5±1.1)% at a record clock rate of 1.15 GHz.http://doi.org/10.1103/PhysRevResearch.2.043292 |
| spellingShingle | Jonathan R. A. Müller R. Mark Stevenson Joanna Skiba-Szymanska Ginny Shooter Jan Huwer Ian Farrer David A. Ritchie Andrew J. Shields Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit Physical Review Research |
| title | Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit |
| title_full | Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit |
| title_fullStr | Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit |
| title_full_unstemmed | Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit |
| title_short | Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit |
| title_sort | active reset of a radiative cascade for entangled photon generation beyond the continuous driving limit |
| url | http://doi.org/10.1103/PhysRevResearch.2.043292 |
| work_keys_str_mv | AT jonathanramuller activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT rmarkstevenson activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT joannaskibaszymanska activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT ginnyshooter activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT janhuwer activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT ianfarrer activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT davidaritchie activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit AT andrewjshields activeresetofaradiativecascadeforentangledphotongenerationbeyondthecontinuousdrivinglimit |