2.1k citations · 7.1k across the 72 of their papers we have counts for
41 papers · 1 filter
Unconditional full vector magnetometry using spin selectivity in Nitrogen Vacancy centers in diamond
Asier Mongelos-Martinez, Jason Tarunesh Francis, Julia Bertero-DiTella +3
Quantum sensors based on nitrogen vacancy (NV) centers in diamond have been a central topic in the sensing community for more than a decade. The extraordinary properties at room te…
Unraveling spin entanglement using quantum gates with scanning tunneling microscopy-driven electron spin resonance
Eric D. Switzer, Jose Reina-Gálvez, Géza Giedke +4
Quantum entanglement is a fundamental resource for quantum information processing, and its controlled generation and detection remain key challenges in scalable quantum architectur…
Generation of polarization-entangled photon pairs from two interacting quantum emitters
Adrián Juan-Delgado, Geza Giedke, Javier Aizpurua +1
Entangled photon pairs are key elements in quantum communication and quantum cryptography. State-of-the-art sources of entangled photons are mainly based on parametric down-convers…
Indistinguishability of identical bosons from a quantum information theory perspective
Matthias Englbrecht, Tristan Kraft, Christoph Dittel +3
Using tools from quantum information theory, we present a general theory of indistinguishability of identical bosons in experiments consisting of passive linear optics followed by…
Long-range electron-electron interactions in quantum dot systems and applications in quantum chemistry
Johannes Knörzer, Cornelis J. van Diepen, Tzu-Kan Hsiao +6
Long-range interactions play a key role in several phenomena of quantum physics and chemistry. To study these phenomena, analog quantum simulators provide an appealing alternative…
Frequency-resolved photon correlations in cavity optomechanics
Mikołaj K. Schmidt, Ruben Esteban, Geza Giedke +2
Frequency-resolved photon correlations have proven to be a useful resource to unveil nonlinearities hidden in standard observables such as the spectrum or the standard (color-blind…
Limit Cycle Phase and Goldstone Mode in Driven Dissipative Systems
H. Alaeian, G. Giedke, I. Carusotto +2
In this article, we theoretically investigate the first- and second-order quantum dissipative phase transitions of a three-mode cavity with a Hubbard interaction. In both types, th…
Symmetry-protection of multiphoton states of light
Jon Lasa-Alonso, Martin Molezuelas, J. J. Miguel Varga +3
In this manuscript we analyze the emergence of protected multiphoton states in scattering problems with cylindrical symmetry. In order to do that, we first provide a formal definit…
Teleporting quantum information encoded in fermionic modes
Tiago Debarba, Fernando Iemini, Geza Giedke +1
Quantum teleportation is considered a basic primitive in many quantum information processing tasks and has been experimentally confirmed in various photonic and matter-based setups…
Solid-state magnetic traps and lattices
Johannes Knörzer, Martin J. A. Schuetz, Geza Giedke +4
We propose and analyze magnetic traps and lattices for electrons in semiconductors. We provide a general theoretical framework and show that thermally stable traps can be generated…
Mode-entanglement of Gaussian fermionic states
Cornelia Spee, Katharina Schwaiger, Géza Giedke +1
We investigate the entanglement of n-mode n-partite Gaussian fermionic states (GFS). First, we identify a reasonable definition of separability for GFS and derive a standard form f…
Acoustic Traps and Lattices for Electrons in Semiconductors
Martin J. A. Schuetz, Johannes Knörzer, Geza Giedke +3
We propose and analyze a solid-state platform based on surface acoustic waves (SAWs) for trapping, cooling and controlling (charged) particles, as well as the simulation of quantum…
High-Fidelity Hot Gates for Generic Spin-Resonator Systems
Martin J. A. Schuetz, Geza Giedke, Lieven M. K. Vandersypen +1
We propose and analyze a high-fidelity hot gate for generic spin-resonator systems which allows for coherent spin-spin coupling, in the presence of a thermally populated resonator…
Degradability of Fermionic Gaussian Channels
Eliška Greplová, Géza Giedke
We study the degradability of fermionic Gaussian channels. Fermionic quantum channels are a central building block of quantum information processing with fermions, and the family o…
Universal Quantum Transducers based on Surface Acoustic Waves
Martin J. A. Schuetz, Eric M. Kessler, Geza Giedke +3
We propose a universal, on-chip quantum transducer based on surface acoustic waves in piezo-active materials. Because of the intrinsic piezoelectric (and/or magnetostrictive) prope…
Gaussian local unitary equivalence of -mode Gaussian states and Gaussian transformations by local operations with classical communication
Géza Giedke, Barbara Kraus
We derive necessary and sufficient conditions for arbitrary multi--mode (pure or mixed) Gaussian states to be equivalent under Gaussian local unitary operations. To do so, we intro…
Standard super-activation for Gaussian channels requires squeezing
Daniel Lercher, Géza Giedke, Michael M. Wolf
The quantum capacity of bosonic Gaussian quantum channels can be non-additive in a particularly striking way: a pair of such optical-fiber type channels can individually have zero…
Dissipative spin chains: Implementation with cold atoms and steady-state properties
Heike Schwager, J. Ignacio Cirac, Géza Giedke
We propose a quantum optical implementation of a class of dissipative spin systems, including the XXZ and Ising model, with ultra-cold atoms in optical lattices. Employing the moti…
Dissipative Dynamics and Phase Transitions in Fermionic Systems
Birger Horstmann, J. Ignacio Cirac, Géza Giedke
We study abrupt changes in the dynamics and/or steady state of fermionic dissipative systems produced by small changes of the system parameters. Specifically, we consider open ferm…
Dissipative Phase Transition in Central Spin Systems
Eric M. Kessler, Geza Giedke, Atac Imamoglu +3
We investigate dissipative phase transitions in an open central spin system. In our model the central spin interacts coherently with the surrounding many-particle spin environment…
Scalable Architecture for a Room Temperature Solid-State Quantum Information Processor
Norman Y. Yao, Liang Jiang, Alexey V. Gorshkov +4
The realization of a scalable quantum information processor has emerged over the past decade as one of the central challenges at the interface of fundamental science and engineerin…
Optical Superradiance from Nuclear Spin Environment of Single Photon Emitters
E. M. Kessler, S. Yelin, M. D. Lukin +2
We show that superradiant optical emission can be observed from the polarized nuclear spin ensemble surrounding a single photon emitter such as a single quantum dot (QD) or Nitroge…
Quantum state engineering, purification, and number resolved photon detection with high finesse optical cavities
Anne E. B. Nielsen, Christine A. Muschik, Geza Giedke +1
We propose and analyze a multi-functional setup consisting of high finesse optical cavities, beam splitters, and phase shifters. The basic scheme projects arbitrary photonic two-mo…
Pairing in fermionic systems: A quantum information perspective
Christina V. Kraus, Michael M. Wolf, J. Ignacio Cirac +1
The notion of "paired" fermions is central to important condensed matter phenomena such as superconductivity and superfluidity. While the concept is widely used and its physical me…