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Title: Investigating student interpretations of the differences between classical and quantum computers: Are quantum computers just analog classical computers?
Significant attention in the PER community has been paid to student cognition and reasoning processes in undergraduate quantum mechanics. Until recently, however, these same topics have remained largely unexplored in the context of emerging interdisciplinary quantum information science (QIS) courses. We conducted exploratory interviews with 22 students in an upper-division quantum computing course at a large R1 university crosslisted in physics and computer science, as well as 6 graduate students in a similar graduate-level QIS course offered in physics. We classify and analyze students' responses to a pair of questions regarding the fundamental differences between classical and quantum computers. We specifically note two key themes of importance to educators: (1) when reasoning about computational power, students often struggled to distinguish between the relative effects of exponential and linear scaling, resulting in students frequently focusing on distinctions that are arguably better understood as analog-digital than classical-quantum, and (2) introducing the thought experiment of analog classical computers was a powerful tool for helping students develop a more expertlike perspective on the differences between classical and quantum computers.  more » « less
Award ID(s):
2011958 2012147
PAR ID:
10437412
Author(s) / Creator(s):
; ; ;
Editor(s):
Frank, B. W.; Jones, D. L.; and Ryan, Q. X.
Date Published:
Journal Name:
2022 Physics Education Research Conference Proceedings
Page Range / eLocation ID:
317 to 322
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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