Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Practical Quantum Mechanism for the Public Goods Game   Quantum generalizations of conventional games broaden the range of available
strategies, which can help improve outcomes for the participants. With many
players, such quantum games can involve entanglement among many states which is
difficult to implement, especially if the states must be communicated over some
distance. This paper describes a quantum mechanism for the economically
significant $n$-player public goods game that requires only two-particle
entanglement and is thus much easier to implement than more general quantum
mechanisms. In spite of the large temptation to free ride on the efforts of
others in this game, two-particle entanglement is sufficient to give near
optimal expected payoff when players use a simple mixed strategy for which no
player can benefit by making different choices. This mechanism can also address
some heterogeneous preferences among the players.

37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat