Dr. Geza Toth

Ikerbasque Research Professor

Géza Tóth is an Ikerbasque Research Professor at the Department of Physics at EHU since 2008.

He obtained a degree in Electrical Engineering from the Budapest University of Technology and Economics in 1994 and completed his PhD in Electrical Engineering at the University of Notre Dame (USA) in 2000.

He subsequently held several postdoctoral positions, including at the Department of Theoretical Physics of the University of Oxford (2001–2002, with J. Yeomans), at the Theoretical Division of the Max Planck Institute of Quantum Optics in Munich (2003–2006, with J. I. Cirac), at the Wigner Research Centre for Physics in Budapest (2006), and at ICFO in Barcelona (2007–2008, with M. Lewenstein). During this period, he also held a Marie Curie fellowship and a Ramón y Cajal contract.

His research focuses on quantum entanglement detection, quantum optics, and quantum metrology. He has coordinated and participated in several international and European research projects in quantum science, including ERC and collaborative European programmes.

He is a recipient of the Bessel Research Award from the Alexander von Humboldt Foundation and serves as a member of the Editorial College of SciPost Physics.

Publications

2026
Reference-frame-independent quantum metrology
Imai,S.; Gühne,O.; Tóth,G.
Iterative optimization in quantum metrology and entanglement theory using semidefinite programming
Lukács,I.; Trényi,R.; Vértesi,T.; Tóth,G.
Hong–Ou–Mandel interference of more than ten indistinguishable atoms
Quensen,M.; Hetzel,M.; Santos,L.; Smerzi,A.; Tóth,G.; Pezzè,L.; Klempt,C.
2025
Electron charge dynamics in metal-dot QCA cell using gate reflectometry
Orlov, Alexei O. 1; Rahaman, Mohammad Istiaque 1; Tóth, Géza 34; Szakmany, Gergo P. 1; Jehl, Xavier 2; Chisum, Jonathan D. 1; Lent, Craig S. 1; Snider, Gregory L. 1
su(d)-squeezing and many-body entanglement geometry in finite-dimensional systems
Vitagliano,G.; Gühne,O.; Tóth,G.
Alternatives of entanglement depth and metrological entanglement criteria
Szalay, S.; Tóth, G.
2024
Collective Randomized Measurements in Quantum Information Processing
Imai, S.; Tóth, G.; Gühne, O.
Activation of metrologically useful genuine multipartite entanglement
Trényi, R.; Lukács, I.; Horodecki, P.; Horodecki, R.; Vértesi, T.; Tóth, G.
2023
Quantum Wasserstein distance based on an optimization over separable states
Tóth, G.; Pitrik, J.
Number-phase uncertainty relations and bipartite entanglement detection in spin ensembles
Vitagliano, G.; Fadel, M.; Apellaniz, I.; Kleinmann, M.; Lücke, B.; Klempt, C.; Tóth, G.
Entanglement witnesses in the XY chain: Thermal equilibrium and postquench nonequilibrium states
Iglói, F.; Tóth, G.
2022
Uncertainty relations with the variance and the quantum Fisher information based on convex decompositions of density matrices
Tóth, G.; Fröwis, F.
2021
Bound entangled singlet-like states for quantum metrology
Pál, K.F.; Tóth, G.; Bene, E.; Vértesi, T.
Activating hidden metrological usefulness
Tóth, G.; Vértesi, T.; Horodecki, P.; Horodecki, R.
Optics InfoBase Conference Papers
2020
Measurement-induced, spatially-extended entanglement in a hot, strongly-interacting atomic system
Kong, J.; Jiménez-Martínez, R.; Troullinou, C.; Lucivero, V.G.; Tóth, G.; Mitchell, M.W.
Activating Hidden Metrological Usefulness
Tóth, G.; Vértesi, T.; Horodecki, P.; Horodecki, R.
2019
There are no publications now
2018
Quantum States with a Positive Partial Transpose are Useful for Metrology
Tóth, G.; Vértesi, T.
Precision bounds for gradient magnetometry with atomic ensembles
Apellaniz, I.; Urizar-Lanz, I.; Zimborás, Z.; Hyllus, P.; Tóth, G.
Entanglement loss in molecular quantum-dot qubits due to interaction with the environment
Blair, E.P.; Tóth, G.; Lent, C.S.
Entanglement between two spatially separated atomic modes
Lange, K.; Peise, J.; Lücke, B.; Kruse, I.; Vitagliano, G.; Apellaniz, I.; Kleinmann, M.; Tóth, G.; Klempt, C.
Entanglement and extreme planar spin squeezing
Vitagliano, G.; Colangelo, G.; Martin Ciurana, F.; Mitchell, M.W.; Sewell, R.J.; Tóth, G.
2017
There are no publications now
2016
There are no publications now
2015
There are no publications now
2014
There are no publications now
2012
There are no publications now
2011
There are no publications now
2010
There are no publications now
2009
There are no publications now
2008
There are no publications now
2007
There are no publications now
2006
There are no publications now
2005
There are no publications now
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