Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum simulations based on measurements and feedback control   We propose a scheme for performing quantum simulations with atoms in cavities
based on a photon detection feedback loop that requires only linear optical
elements. Atoms can be stored individually without the need of directly
interacting with one another. The scheme is able to simulate any time evolution
that can be written as a sum of two-qubit Hamiltonians, .e.g., any next
neighbor interaction on a lattice. It can also be made robust against photon
losses.

29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg