Peer-Reviewed Output

Publications

Thirteen peer-reviewed papers across cavity optomechanics, microwave optomechanics, low-temperature instrumentation, and earlier work on field emission and the inverse Leidenfrost effect. Three further manuscripts on superfluid ⁴He optomechanics and high-frequency gravitational wave detection are in preparation.

2025 In preparation
P1
A proposal for gravitational wave detection using superfluid ⁴He in a microwave re-entrant geometry
Sean Hibbit, Sumit Kumar, et al.
Manuscript in preparation
P2
Superfluid optomechanics with third sound on ⁴He for analogue black-hole simulations
Sumit Kumar, et al.
Manuscript in preparation
P3
Non-linearities in fourth sound of superfluid ⁴He sonic crystal resonator
Sumit Kumar, et al.
Manuscript in preparation
2024 Peer-reviewed
01
Optomechanically Induced Transparency in a 3D Microwave Cavity Architecture at Ambient Temperature
Sumit Kumar, et al.
AIP Advances 14.3 (2024)
2023 Peer-reviewed
02
Nano-beam clamping revisited
I. Golokolenov, Sumit Kumar, et al.
Journal of Applied Physics 133.12, 124302 (2023)
03
A Novel Architecture for Room-Temperature Microwave Optomechanical Experiments
Sumit Kumar, et al.
Journal of Applied Physics 133.9, 094501 (2023)
2022 Peer-reviewed
04
Microwave Optomechanically Induced Transparency and Absorption Between 250 and 450 mK
Sumit Kumar, et al.
Journal of Low Temperature Physics (2022)
05
Microwave optomechanical measurement of non-metallized SiN strings at mK temperatures
Sumit Kumar, et al.
arXiv:2110.00228
arXiv
2021 Peer-reviewed
06
A macroscopic object passively cooled into its quantum ground state of motion beyond single-mode cooling
D. Cattiaux, I. Golokolenov, S. Kumar, M. Sillanpää, L. Mercier de Lépinay, R. R. Gazizulin, X. Zhou, A. D. Armour, O. Bourgeois, A. Fefferman, E. Collin
Nature Communications 12, 6182 (2021)
07
Microwave single-tone optomechanics in the classical regime
I. Golokolenov, D. Cattiaux, Sumit Kumar, M. Sillanpää, L. Mercier de Lépinay, A. Fefferman, E. Collin
New Journal of Physics 23, 053008 (2021)
2020 Peer-reviewed
08
Beyond linear coupling in microwave optomechanics
D. Cattiaux, X. Zhou, S. Kumar, I. Golokolenov, R. R. Gazizulin, A. Luck, L. Mercier de Lépinay, M. Sillanpää, A. Armour, A. Fefferman, E. Collin
Physical Review Research 2, 033480 (2020)
09
Geometrical Nonlinearity of Circular Plates and Membranes
D. Cattiaux, S. Kumar, X. Zhou, A. Fefferman, E. Collin
Journal of Applied Physics 128, 104501 (2020)
10
A 10 mK hermetic cell for eliminating parasitic heating in cryogen-free dilution refrigerators
D. Schmoranzer, Sumit Kumar, S. Triqueneaux, X. Liu, T. Metcalf, G. Jernigan, E. Collin, A. Fefferman
Cryogenics 110, 103162 (2020)
2019 Peer-reviewed
11
Observations on thermal coupling of silicon oscillators in cryogen-free dilution refrigerators
D. Schmoranzer, Sumit Kumar, A. Luck, E. Collin, A. Fefferman, X. Liu, T. Metcalf, G. Jernigan
Journal of Low Temperature Physics 196, 268 (2019)
2016 Peer-reviewed · Earlier work
12
Improved field emission from indium decorated multi-walled carbon nanotubes
M. Sreekanth, S. Ghosh, P. Biswas, S. Kumar, P. Srivastava
Applied Surface Science 383, 84–89 (2016)
13
Inverse Leidenfrost effect: Levitating drops on liquid nitrogen
M. Adda-Bedia, S. Kumar, F. Lechenault, S. Moulinet, M. Schillaci, D. Vella
Langmuir 32(17), 4179–4188 (2016)