References & Citations
Quantum Physics
Title: Decoherence-Free Subspaces Cannot Prevent the Collapse of Wave Functions
(Submitted on 31 Jan 2024 (v1), last revised 11 May 2024 (this version, v2))
Abstract: Efficacious quantum information processing relies on extended coherence and precise control. Investigating the limitations surrounding quantum processors is vital for their advancement. In their operation, one challenge is inadvertent wave function collapse. Decoherence-free subspaces, theoretically capable of mitigating specific non unitary dynamics, present a promising avenue. However, our study unveils their inability to safeguard against spontaneous wave function collapse. Thus, the spontaneous-collapse rate becomes a critical limiting factor for quantum systems' physical coherence, restricting the options for maintaining coherence to active error correction.
Submission history
From: Alfred Li [view email][v1] Wed, 31 Jan 2024 19:00:02 GMT (450kb,D)
[v2] Sat, 11 May 2024 01:42:18 GMT (691kb,D)
Link back to: arXiv, form interface, contact.