Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Picturing Qubits in Phase Space   Focusing particularly on one-qubit and two-qubit systems, I explain how the
quantum state of a system of n qubits can be expressed as a real function--a
generalized Wigner function--on a discrete 2^n x 2^n phase space. The phase
space is based on the finite field having 2^n elements, and its geometric
structure leads naturally to the construction of a complete set of 2^n+1
mutually conjugate bases.

4
The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: econ
23
The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: physics
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The categories of this paper are: hep-ex