# A theoretical separation between quantum computers & LLMs

DevFeed: [A theoretical separation between quantum computers & LLMs](<https://devfeed.tech/articles/a-theoretical-separation-between-quantum-computers-llms-26801.md>)

Original publisher: [Read original article](<https://research.ibm.com/blog/quantum-circuits-vs-llms>)

Author: Srinivasan Arunachalam; Arkopal Dutt; Hari Krovi; Rik Sengupta; Ryan Mandelbaum

Published: 2026-09-15T04:00:00Z

Content type: article

Language: en

Sources: [IBM Research](<https://devfeed.tech/sources/ibm-research.md>)

Topics: [Quantum Computing](<https://devfeed.tech/topics/quantum-computing.md>), [LLMs](<https://devfeed.tech/topics/llms.md>), [Computer science](<https://devfeed.tech/topics/computer-science.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [computer-science](<https://devfeed.tech/tags/computer-science.md>), [llms](<https://devfeed.tech/tags/llms.md>), [quantum](<https://devfeed.tech/tags/quantum.md>), [research](<https://devfeed.tech/tags/research.md>), [science](<https://devfeed.tech/tags/science.md>)

## AI overview

The article discusses research showing theoretical separations between shallow quantum circuits and restricted large language models. The work identifies computational problems involving function computation and sampling where shallow quantum circuits have a provable advantage, while emphasizing that the results are theoretical rather than immediately practical.

## Source excerpt

Recent research further demonstrates the theoretical abilities of quantum computing