activity
20082026
most citedTensor product methods and entanglement optimization for ab initio quantum chemistry

306 citations · 860 across the 23 of their papers we have counts for

collaborators

24 papers

quant-ph2026

Local qubit invariants on quantum computer

Szilárd Szalay, Frédéric Holweck

We present two general methods to implement quantum circuits for the direct measuring of local unitary invariants on quantum computers. We work these out for important three-qubit…

quant-ph2025

The three kinds of three-qubit entanglement

Szilárd Szalay

We construct an important missing piece in the entanglement theory of pure three-qubit states, which is a polynomial measure of W-entanglement, working in parallel to the three-tan…

quant-ph2025★ 2 cited

Dicke subsystems are entangled

Szilárd Szalay, Péter Nyári

We show that all reduced states of nonproduct symmetric Dicke states of arbitrary number of qudits are genuinely multipartite entangled, and of nonpositive partial transpose with r…

quant-ph2024

Noncommuting common causes revisited

Gábor Hofer-Szabó, Szilárd Szalay

In this paper, we revisit the concept of noncommuting common causes; refute two objections raised against them, the triviality objection and the lack of causal explanatory force; a…

quant-ph2024★ 7 cited

Alternatives of entanglement depth and metrological entanglement criteria

Szilárd Szalay, Géza Tóth

We work out the general theory of one-parameter families of partial entanglement properties and the resulting entanglement depth-like quantities. Special cases of these are the dep…

physics.chem-ph2022

Compressing multireference character of wave functions via fermionic mode optimization

Mihály Máté, Klára Petrov, Szilárd Szalay +1

In this work, we present a brief overview of the fermionic mode optimization within the framework of tensor network state methods [PRL 117,210402(2016)], and demonstrate that it ha…