Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strategies to simulate dephasing-assisted quantum transport on digital
  quantum computers   Simulating charge and energy transfer in extended molecular networks requires
an effective model to include the environment because it significantly affects
the quantum dynamics. A prototypical effect known as Environment-Assisted
Quantum Transport (ENAQT) consists in the modulation and sometimes enhancement
of the transfer efficiency by the interaction with an environment. A simple
description of this phenomenon is obtained by a quantum master equation
describing a quantum walk over the molecular network in the presence of
inter-site decoherence. We consider the problem of simulating the dynamics
underlying ENAQT in a digital quantum computer. Two different quantum
algorithms are introduced, the first one based on stochastic Hamiltonians and
the second one based on a collision scheme. We test both algorithms by
simulating ENAQT in a small molecular network on a quantum computer emulator
and provide a comparative analysis of the two approaches. Both algorithms can
be implemented in a memory efficient encoding with the number of required
qubits scaling logarithmically with the size of the simulated system while the
number of gates increases quadratically. We discuss the algorithmic quantum
trajectories generated by the two simulation strategies showing that they
realize distinct unravellings of the site-dephasing master equation. In our
approach, the non-unitary dynamics of the open system is obtained through
effective representations of the environment, paving the way to digital quantum
simulations of quantum transport influenced by structured environments.

29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas