Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reply on Comments on "Observation of a Fast Evolution in a
  Parity-time-symmetric System"(Aixiv.1106.1550)   Masillo [1] commented on our manuscript [2] "Observation of a Fast Evolution
in a Parity-time-symmetric System", pointing out a contradiction of our work
with Ref.[3]. In this reply, we pointed out there is no disagreement between
Masillo's comment and our work in Ref. [2]. The efficiency cost pointed out in
Ref.\cite{masillo} exists, namely to obtain the PT-symmetric hamiltonian
evolution, one has to make a measurement on the auxiliary qubit and the
auxiliary qubit is at state $|0\ket$ only probabilistically. This is reflected
in the amplitude of the spectrum in the NMR quantum simulation. As a result, we
made a small modification in a new version of the Ref. [2], and Fig. 2 of
Ref.[2] has been replaced by spectra of two different $\alpha$'s in order to
illustrate this fact.

21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn