Zobrazeno 1 - 10
of 2 589
pro vyhledávání: '"Rosen, P J"'
Autor:
Alegria, Loren D., Abelson, Alex, Kim, Eunjeong, Im, Soohyun, Voyles, Paul M., Lordi, Vincenzo, Dubois, Jonathan L, Rosen, Yaniv J.
Tantalum films incorporated into superconducting circuits have exhibited low surface losses, resulting in long-lived qubit states. Remaining loss pathways originate in microscopic defects which manifest as two level systems (TLS) at low temperature.
Externí odkaz:
http://arxiv.org/abs/2405.07388
Quantum two-level systems (TLSs) limit the performance of superconducting qubits and superconducting and optomechanical resonators breaking down the coherence and absorbing the energy of oscillations. TLS absorption can be suppressed or even switched
Externí odkaz:
http://arxiv.org/abs/2401.15624
Autor:
Yu, Kangdi, Sarihan, Murat C., Kang, Jin Ho, Taylor, Madeline, Fan, Cody S., Banerjee, Ananyo, DuBois, Jonathan L., Rosen, Yaniv J., Wong, Chee Wei
The field of superconducting quantum computing, based on Josephson junctions, has recently seen remarkable strides in scaling the number of logical qubits. In particular, the fidelities of one- and two-qubit gates have reached the breakeven point wit
Externí odkaz:
http://arxiv.org/abs/2310.18856
Autor:
Alegria, L. D., Tennant, D. M., Chaves, K. R., Lee, J. R. I., O'Kelley, S. R., Rosen, Y. J., DuBois, J L
Publikováno v:
Appl. Phys. Lett. 123, 062601 (2023)
Building usefully coherent superconducting quantum processors depends on reducing losses in their constituent materials. Tantalum, like niobium, has proven utility as the primary superconducting layer within highly coherent qubits. But, unlike Nb, hi
Externí odkaz:
http://arxiv.org/abs/2301.10306
Autor:
Luchi, Piero, Trevisanutto, Paolo E., Roggero, Alessandro, DuBois, Jonathan L., Rosen, Yaniv J., Turro, Francesco, Amitrano, Valentina, Pederiva, Francesco
Publikováno v:
Phys. Rev. Applied 20, 014045, 2023
In addition to the need for stable and precisely controllable qubits, quantum computers take advantage of good readout schemes. Superconducting qubit states can be inferred from the readout signal transmitted through a dispersively coupled resonator.
Externí odkaz:
http://arxiv.org/abs/2212.00080
Autor:
Cho, Yujin, Jasrasaria, Dipti, Ray, Keith G., Tennant, Daniel M., Lordi, Vincenzo, DuBois, Jonathan L, Rosen, Yaniv J.
Publikováno v:
Quantum Sci. Technol. 8 045023 (2023)
Material defects fundamentally limit the coherence times of superconducting qubits, and manufacturing completely defect-free devices is not yet possible. Therefore, understanding the interactions between defects and a qubit in a real quantum processo
Externí odkaz:
http://arxiv.org/abs/2211.08535
Autor:
Martinez, L. A., Peng, Z., Appelö, D., Tennant, D. M., Petersson, N. Anders, DuBois, J. L, Rosen, Y. J.
In the higher levels of superconducting transmon devices, and more generally charge sensitive devices, $T_2^*$ measurements made in the presence of low-frequency time-correlated $1/f$ charge noise and quasiparticle-induced parity flips can give an un
Externí odkaz:
http://arxiv.org/abs/2211.06531
Autor:
Rahaman, Mahfujur, Marino, Emanuele, Joly, Alan G., Song, Seunguk, Jiang, Zhiqiao, OCallahan, Brian T., Rosen, Daniel J., Jo, Kiyoung, Kim, Gwangwoo, El-Khoury, Patrick Z., Murray, Christopher B., Jariwala, Deep
Observation of interlayer, charge-transfer (CT) excitons in van der Waals heterostructures (vdWHs) based on 2D-2D systems has been well investigated. While conceptually interesting, these charge transfer excitons are highly delocalized and spatially
Externí odkaz:
http://arxiv.org/abs/2210.12608
Autor:
Yu, Liuqi, Matityahu, Shlomi, Rosen, Yaniv J., Hung, Chih-Chiao, Maksymov, Andrii, Burin, Alexander L., Schechter, Moshe, Osborn, Kevin D.
Publikováno v:
Sci Rep 12, 16960 (2022)
Quantum two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices, such as superconducting qubits. Although the low-temperature physics of these TLSs is usually well-explained by a phenomenological standard tunne
Externí odkaz:
http://arxiv.org/abs/2110.10747
Autor:
Tennant, Daniel M., Martinez, Luis A., Beck, Kristin M., O'Kelley, Sean R., Wilen, Christopher D., McDermott, R., DuBois, Jonathan L, Rosen, Yaniv J.
Transmon qubits fabricated with tantalum metal have been shown to possess energy relaxation times greater than 300 $\mu$s and, as such, present an attractive platform for high precision, correlated noise studies across multiple higher energy transiti
Externí odkaz:
http://arxiv.org/abs/2106.08406