Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time optimal quantum control of two-qubit systems   We study the optimal quantum control of heteronuclear two-qubit systems
described by a Hamiltonian containing both nonlocal internal drift and local
control terms. We derive an explicit formula to compute the minimum time
required to steer the system from an initial state to a specified final state.
As applications the minimal time to implement Controlled-NOT gate, SWAP gate
and Controlled-U gate is calculated in detail. The experimental realizations of
these quantum gates are explicitly presented.

11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci