7 papers
Hunting for quantum advantage in electronic structure calculations is a highly non-trivial task
Ãrs Legeza, Andor Menczer, Miklós Antal Werner +7
In light of major developments over the past decades in both quantum computing and simulations on classical hardware, it is a serious challenge to identify a real-world problem whe…
Classical fractional time series from quantum XXZ spin chains
Zoltán Udvarnoki, Gábor Fáth, Miklós Werner +1
Entangled quantum mechanical states in one dimension can be used to represent and simulate classical stochastic processes with nontrivial statistical properties. Long-range quantum…
Assessing the Reliability of Truncated Coupled Cluster Wavefunction: Estimating the Distance from the Exact Solution
Ãdám Ganyecz, Zsolt Benedek, Klára Petrov +4
A new approach is proposed to assess the reliability of the truncated wavefunction methods by estimating the deviation from the full configuration interaction (FCI) wavefunction. W…
Real-Time Dynamics in a (2+1)-D Gauge Theory: The Stringy Nature on a Superconducting Quantum Simulator
Jesús Cobos, Joana Fraxanet, César Benito +7
Understanding the confinement mechanism in gauge theories and the universality of effective string-like descriptions of gauge flux tubes remains a fundamental challenge in modern p…
Orbital optimization of large active spaces via AI-accelerators
Ãrs Legeza, Andor Menczer, Ãdám Ganyecz +6
We present an efficient orbital optimization procedure that combines the highly GPU accelerated, spin-adapted density matrix renormalization group (DMRG) method with the complete a…
Tensor network state methods and quantum information theory for strongly correlated molecular systems
Miklós Antal Werner, Andor Menczer, Ãrs Legeza
A brief pedagogical overview of recent advances in tensor network state methods are presented that have the potential to broaden their scope of application radically for strongly c…