Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adiabatic passage to the continuum   We demonstrate that by changing the direction of the chirp in VUV pulses one
can switch between excitation and ionization with very high contrast, if the
carrier frequency of the light is resonant with two bound states. This is a
surprising consequence if rapid adiabatic passage is extended to include
transitions to the continuum. The chirp phase locks the linear combination of
two resonantly coupled bound states whose ionization amplitudes interfere
constructively or destructively depending on the chirp direction under suitable
conditions. We derive the phenomenon in a minimal model and verify the effect
with calculations for helium as a realistic example.

15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org