| Project/Area Number |
23K03290
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
|
|---|
| Research Institution | Okinawa Institute of Science and Technology Graduate University |
|---|
Principal Investigator |
FOGARTY Thomas 沖縄科学技術大学院大学, 量子システム研究ユニット, スタッフサイエンティスト (60786987)
|
|---|
| Project Period (FY) |
2023-04-01 – 2026-03-31
|
| Project Status |
Granted (Fiscal Year 2023)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2025: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2024: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Keywords | quantum heat engines / quantum batteries / symmetry / quantum control / quantum correlations / interacting gases / thermodynamics / cold atoms |
|---|
| Outline of Research at the Start |
My goal is to discover how uniquely quantum effects, such as many-body correlations induced by interparticle interactions and the emergence of quantum statistics at low temperatures, can be harnessed to give an advantage over classical devices.
|
| Outline of Annual Research Achievements |
The topic of this research plan is the effect of particle exchange symmetry on the performance of quantum heat engines and quantum batteries. In this past year 5 papers have been published on this project, 2 in Physical Review Research, 2 in Scipost Physics and 1 in Nature.
I highlight 2 of these important works. The first in PRR on developing a variational quantum algorithm to calculate the energy extraction from a quantum battery showed the effect of correlations on this process. It was also the first of its kind to be developed and run on a quantum computer. The second paper in Nature was on the BEC-BCS crossover quantum engine, in which the change of statistics between fermions and bosons allowed to extract work from a purely quantum effect. This was confirmed by the experiment from the Kaiserslautern group who were my collaborators on this project.
|
| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The first 2 major works of this project have been completed: quantum algorithm for quantum batteries, and the BEC-BCS quantum engine experiment. In the following year I will work on followup works to the quantum battery and quantum heat engine projects. Firstly, one of the main goals of this project: the role of statistics in a quantum battery, particularly the role of symmetrization in work extraction. Most of the data has been collected and the paper is now being written. Secondly, a theory paper looking into the details of statistics enhanced quantum heat engines, focussing on modeling the 1D Lieb-Liniger model and using interactions to control statistics during an engine cycle. The paper is close to being completed.
|
| Strategy for Future Research Activity |
After finishing the next two papers outlined above, I plan to start two more followup projects. One is focussing on a p-wave interacting quantum battery and its thermodynamics. Here s-wave interacting bosons can be mapped to p-wave interacting fermions, allowing to quickly get results for single component systems, including quench spectral functions. This will eventually be extended to 2-component systems with mixtures of s-wave and p-wave interactions. The second project will be a focus on heat flow in distinguishable Bose-Bose and Bose-Fermi mixtures. For this I am developing code to describe few-body systems and their heat flow from one system to the other. Statistics will play a role depending on the symmetry of the initial state and their correlations.
|
