Flexible entangled state generation in linear optics
- URL: http://arxiv.org/abs/2310.06832v1
- Date: Tue, 10 Oct 2023 17:58:21 GMT
- Title: Flexible entangled state generation in linear optics
- Authors: Brendan Pankovich, Alex Neville, Angus Kan, Srikrishna Omkar, Kwok Ho
Wan, Kamil Br\'adler
- Abstract summary: Fault-tolerant quantum computation can be achieved by creating constant-sized, entangled resource states.
We show that it is possible to boost the success probability of photonic GHZ state analysers with single photon auxiliary states.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Fault-tolerant quantum computation can be achieved by creating
constant-sized, entangled resource states and performing entangling
measurements on subsets of their qubits. Linear optical quantum computers can
be designed based on this approach, even though entangling operations at the
qubit level are non-deterministic in this platform. Probabilistic generation
and measurement of entangled states must be pushed beyond the required
threshold by some combination of scheme optimisation, introduction of
redundancy and auxiliary state assistance. We report progress in each of these
areas. We explore multi-qubit fusion measurements on dual-rail photonic qubits
and their role in measurement-based resource state generation, showing that it
is possible to boost the success probability of photonic GHZ state analysers
with single photon auxiliary states. By incorporating generators of basic
entangled "seed" states, we provide a method that simplifies the process of
designing and optimising generators of complex, encoded resource states by
establishing links to ZX diagrams.
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