Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets
The at-will control of quantum states is a primary goal of quantum science and technology. The celebrated Hahn echo exemplifies such quantum-state control based on a time-reversal process in a few-level system. Here, we propose a different echo phenomenon associated with the energy-band structure in...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-11-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.043155 |
| _version_ | 1797210603624857600 |
|---|---|
| author | Shohei Imai Atsushi Ono Sumio Ishihara |
| author_facet | Shohei Imai Atsushi Ono Sumio Ishihara |
| author_sort | Shohei Imai |
| collection | DOAJ |
| description | The at-will control of quantum states is a primary goal of quantum science and technology. The celebrated Hahn echo exemplifies such quantum-state control based on a time-reversal process in a few-level system. Here, we propose a different echo phenomenon associated with the energy-band structure in quantum many-body systems. We show that the dynamics of quasiparticle wave packets can be reversed by a driving electric-field pulse, yielding echoes with the time-reversed waveform of the optical excitation pulse when the quasiparticles recombine. The present echoes are observed not only in band insulators but also in correlated insulators, including a Mott insulator and a spontaneously-broken-symmetry charge-ordered insulator, in one- and higher-dimensional systems, irrespective of the integrability of the models. Analytical expressions reveal the conditions under which the echoes appear, and they also indicate that the frequency of the echo pulses reflects the dispersion relation for quasiparticles such as electron-hole pairs, doublon-holon pairs, and kink-antikink pairs. These findings provide a framework for all-optical momentum-resolved spectroscopy of the quasiparticles in quantum many-body systems. |
| first_indexed | 2024-04-24T10:13:13Z |
| format | Article |
| id | doaj.art-bc90f4762c54402fbca7310131abbd9c |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:13:13Z |
| publishDate | 2022-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-bc90f4762c54402fbca7310131abbd9c2024-04-12T17:26:41ZengAmerican Physical SocietyPhysical Review Research2643-15642022-11-014404315510.1103/PhysRevResearch.4.043155Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packetsShohei ImaiAtsushi OnoSumio IshiharaThe at-will control of quantum states is a primary goal of quantum science and technology. The celebrated Hahn echo exemplifies such quantum-state control based on a time-reversal process in a few-level system. Here, we propose a different echo phenomenon associated with the energy-band structure in quantum many-body systems. We show that the dynamics of quasiparticle wave packets can be reversed by a driving electric-field pulse, yielding echoes with the time-reversed waveform of the optical excitation pulse when the quasiparticles recombine. The present echoes are observed not only in band insulators but also in correlated insulators, including a Mott insulator and a spontaneously-broken-symmetry charge-ordered insulator, in one- and higher-dimensional systems, irrespective of the integrability of the models. Analytical expressions reveal the conditions under which the echoes appear, and they also indicate that the frequency of the echo pulses reflects the dispersion relation for quasiparticles such as electron-hole pairs, doublon-holon pairs, and kink-antikink pairs. These findings provide a framework for all-optical momentum-resolved spectroscopy of the quasiparticles in quantum many-body systems.http://doi.org/10.1103/PhysRevResearch.4.043155 |
| spellingShingle | Shohei Imai Atsushi Ono Sumio Ishihara Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets Physical Review Research |
| title | Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets |
| title_full | Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets |
| title_fullStr | Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets |
| title_full_unstemmed | Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets |
| title_short | Energy-band echoes: Time-reversed light emission from optically driven quasiparticle wave packets |
| title_sort | energy band echoes time reversed light emission from optically driven quasiparticle wave packets |
| url | http://doi.org/10.1103/PhysRevResearch.4.043155 |
| work_keys_str_mv | AT shoheiimai energybandechoestimereversedlightemissionfromopticallydrivenquasiparticlewavepackets AT atsushiono energybandechoestimereversedlightemissionfromopticallydrivenquasiparticlewavepackets AT sumioishihara energybandechoestimereversedlightemissionfromopticallydrivenquasiparticlewavepackets |