Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conditional coherent control with superconducting artificial atoms   Controlling the flow of quantum information is a fundamental task for quantum
computers, which is unpractical to realize on classical devices. Coherent
devices which can process quantum states are thus required to route the quantum
states yielding the information. In this paper we demonstrate experimentally
the smallest quantum transistor for superconducting processors, composed of
collector and emitter qubits, and the coupler. The interaction strength between
the collector and emitter is controlled by tuning the frequency and the state
of the gate qubit, effectively implementing a quantum switch. From the
truth-table measurement (open-gate fidelity 93.38%, closed-gate fidelity
98.77%), we verify the high performance of the quantum transistor. We also show
that taking into account the third energy level of the qubits is critical to
achieving a high-fidelity transistor. The presented device has a strong
potential for quantum information processes in superconducting platforms.

16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org