Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Achieving Heisenberg limit under General Markov Noise without Ancilla   We consider probing qubits infested by general Makovian noise. It can be
shown that one can restore Heisenberg limit (HL) via full and fast control
without any ancilla, as long as the Hamiltonian of the system has non-vanishing
component perpendicular to the noise

19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
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The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin