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Vertex-minor universal graphs for generating entangled quantum subsystems

Authors: Cautrès, Maxime; Claudet, Nathan; Mhalla, Mehdi; Perdrix, Simon; Savin, Valentin; Thomassé, Stéphan;

Vertex-minor universal graphs for generating entangled quantum subsystems

Abstract

We study the notion of $k$-stabilizer universal quantum state, that is, an $n$-qubit quantum state, such that it is possible to induce any stabilizer state on any $k$ qubits, by using only local operations and classical communications. These states generalize the notion of $k$-pairable states introduced by Bravyi et al., and can be studied from a combinatorial perspective using graph states and $k$-vertex-minor universal graphs. First, we demonstrate the existence of $k$-stabilizer universal graph states that are optimal in size with $n=Θ(k^2)$ qubits. We also provide parameters for which a random graph state on $Θ(k^2)$ qubits is $k$-stabilizer universal with high probability. Our second contribution consists of two explicit constructions of $k$-stabilizer universal graph states on $n = O(k^4)$ qubits. Both rely upon the incidence graph of the projective plane over a finite field $\mathbb{F}_q$. This provides a major improvement over the previously known explicit construction of $k$-pairable graph states with $n = O(2^{3k})$, bringing forth a new and potentially powerful family of multipartite quantum resources.

Keywords

FOS: Computer and information sciences, entanglement: quantum, Quantum Physics, k-pairability, Mathematics of computing → Graph theory, Discrete Mathematics (cs.DM), Theory of computation → Quantum communication complexity, vertex-minors, 500, FOS: Physical sciences, graph states, stability, [INFO] Computer Science [cs], 004, Quantum networks, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Theory of computation → Quantum information theory, quantum state, graph state, [INFO]Computer Science [cs], Quantum Physics (quant-ph), qubit, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph], Computer Science - Discrete Mathematics, ddc: ddc:004

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green