<p>In theoretical physics, there is a branch of quantum field theory dealing with chiral gauge theories. It has been conjectured by Feynman [1] and others that all quantum field theories can be simulated in a limit computable manner efficiently on a quantum computer. However, there is the challenge of finding an efficient limit computable simulation of chiral gauge theories on a quantum computer. Does this problem lie within $\mathsf{BQP}$? </p>

<p>[1] Richard P. Feynman. <a href="http://www.cs.berkeley.edu/~christos/classics/Feynman.pdf" rel="nofollow">Simulating Physics with Computers</a>. International 
Journal of Theoretical Physics, Vol. 21, Nos. 6/7, 1982 </p>

CC BY-SA 3.0
2015-09-15T12:14:33.170Z
Since this is a computer science theory forum, it would be nice if you could clarify (or provide references explaninig) why simulating *chiral* theories (in which sense, btw?) should be "harder" in terms of computational complexity.
Juan Bermejo Vega
CC BY-SA 3.0
2015-09-15T19:32:13.010Z
https://physics.stackexchange.com/questions/32977/how-do-you-simulate-chiral-gauge-theories-on-a-computer/33001#33001 is this question relevant?
Joshua Herman
<cc.complexity-theory><complexity-classes><quantum-computing><quantum-information><physics>
Does simulating chiral gauge theories lie within BQP?
CS physicist
# Does simulating chiral gauge theories lie within BQP?

(Asked by: username_0 on 2015-09-14)

In theoretical physics, there is a branch of quantum field theory dealing with chiral gauge theories. It has been conjectured by Feynman [1] and others that all quantum field theories can be simulated in a limit computable manner efficiently on a quantum computer. However, there is the challenge of finding an efficient limit computable simulation of chiral gauge theories on a quantum computer. Does this problem lie within $\mathsf{BQP}$?

[1] Richard P. Feynman. [Simulating Physics with Computers](http://www.cs.berkeley.edu/~christos/classics/Feynman.pdf). International
Journal of Theoretical Physics, Vol. 21, Nos. 6/7, 1982

**Tags:** cc.complexity-theory, complexity-classes, quantum-computing, quantum-information, physics
> **Comments:**
> **username_1**: Since this is a computer science theory forum, it would be nice if you could clarify (or provide references explaninig) why simulating *chiral* theories (in which sense, btw?) should be "harder" in terms of computational complexity.  
> **username_2**: https://physics.stackexchange.com/questions/32977/how-do-you-simulate-chiral-gauge-theories-on-a-computer/33001#33001 is this question relevant?  

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