
arXiv: 2402.06260
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.
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
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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