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28Si 2x2 device
Nice looking 2 x 2 spin qubit device in isotopically purified silicon (28Si/SiGe)..... but doesn't work
graduation 2024
Congratulations, Dr. Sungjun Park (Ph.D.) and Ms. Minyoung Kim (M.S,) !
Exchange interaction
The distance (in frequency unit) between two branches directly measures exchange interaction between two individual electron spins. The z-value is the excited state probability of one of the two spins.
2023 graduation
Congratulations. Kiho & Wonjin !
2023 graduation
Congratulations, Byungwoo !
Spin qubit device in 28Si: optical microscope image
Overlaid gate structure : fab. recipe finally perfected! Image Courtesy: Mr. Jaemin Park
We stole many ideas from the paper: https://www.nature.com/articles/s41586-022-05117-x
We stole many ideas from the paper: https://www.nature.com/articles/s41586-022-05117-x
Quantum oscillation of a singlet-triplet qubit in 28Si
Indeed 28Si enables the highest quality ! Image Courtesy : Mr. Jongin Yun
Beautiful charge stability
Double Quantum Dot stability diagram in isotopically purified 28Si
Dr. Jehyun Kim graduation
Congratulations ! We wish for your best in your new post-doc position.
Dr. Cho graduation
Congratulations. We wish for your best in your new position.
Silicon spin qubit test device
At last, 30nm width, 60nm pitch, < 10 nm alignment achieved !
Another PCB
For controlling four qubits. Image courtesy of Hanseo Sohn
2022 Teacher's day
Thanks guys ! - no masks with beautiful daylight... at last !
Dr. Jiwon Yun
Congratulations Jiwon for your Ph.D graduation !
Upgrading filter banks
LC+RC filter banks for reducing electron temperature. Image courtesy of Mr. Sangwoo Shim
Monster PCB
for controlling 10 qubits. Image courtesy of Mr. Jaemin Park and Mr. Jaehyun Kim
2nd dil. fridge
Sample loading practice
Faulty PCB
Prof. Kim tries to fix a faulty circuit board... and he only made it worse.
Group photo 2021.5.14
We wish this pandemic situation ends soon.
Group photo 2019.5.15
Thanks guys !
Triton 500
Our main workhorse. Triton dilution refrigerator #1
2nd generation triton
Equipment arrived.. Waiting for engineer..
28Si 2x2 device
Nice looking 2 x 2 spin qubit device in isotopically purified silicon (28Si/SiGe)..... but doesn't work
graduation 2024
Congratulations, Dr. Sungjun Park (Ph.D.) and Ms. Minyoung Kim (M.S,) !
Exchange interaction
The distance (in frequency unit) between two branches directly measures exchange interaction between two individual electron spins. The z-value is the excited state probability of one of the two spins.
2023 graduation
Congratulations. Kiho & Wonjin !
2023 graduation
Congratulations, Byungwoo !
Spin qubit device in 28Si: optical microscope image
Overlaid gate structure : fab. recipe finally perfected! Image Courtesy: Mr. Jaemin Park
We stole many ideas from the paper: https://www.nature.com/articles/s41586-022-05117-x
We stole many ideas from the paper: https://www.nature.com/articles/s41586-022-05117-x
Quantum oscillation of a singlet-triplet qubit in 28Si
Indeed 28Si enables the highest quality ! Image Courtesy : Mr. Jongin Yun
Beautiful charge stability
Double Quantum Dot stability diagram in isotopically purified 28Si
Dr. Jehyun Kim graduation
Congratulations ! We wish for your best in your new post-doc position.
Dr. Cho graduation
Congratulations. We wish for your best in your new position.
Silicon spin qubit test device
At last, 30nm width, 60nm pitch, < 10 nm alignment achieved !
Another PCB
For controlling four qubits. Image courtesy of Hanseo Sohn
2022 Teacher's day
Thanks guys ! - no masks with beautiful daylight... at last !
Dr. Jiwon Yun
Congratulations Jiwon for your Ph.D graduation !
Upgrading filter banks
LC+RC filter banks for reducing electron temperature. Image courtesy of Mr. Sangwoo Shim
Monster PCB
for controlling 10 qubits. Image courtesy of Mr. Jaemin Park and Mr. Jaehyun Kim
2nd dil. fridge
Sample loading practice
Faulty PCB
Prof. Kim tries to fix a faulty circuit board... and he only made it worse.
Group photo 2021.5.14
We wish this pandemic situation ends soon.
Group photo 2019.5.15
Thanks guys !
Triton 500
Our main workhorse. Triton dilution refrigerator #1
2nd generation triton
Equipment arrived.. Waiting for engineer..
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