140 citations · 946 across the 16 of their papers we have counts for
16 papers
Remote optimization of an ultra-cold atoms experiment by experts and citizen scientists
Robert Heck, Oana Vuculescu, Jens Jakob Sørensen +17
We introduce a novel remote interface to control and optimize the experimental production of Bose-Einstein condensates (BECs) and find improved solutions using two distinct impleme…
Proposal for detection of a single electron spin in a microwave resonator
P. Haikka, Y. Kubo, A. Bienfait +2
We propose a method for detecting the presence of a single spin in a crystal by coupling it to a high-quality factor superconducting planar resonator. By confining the microwave fi…
Exploring the Quantum Speed Limit with Computer Games
Jens Jakob W. H. Sørensen, Mads Kock Pedersen, Michael Munch +9
Humans routinely solve problems of immense computational complexity by intuitively forming simple, low-dimensional heuristic strategies. Citizen science exploits this ability by pr…
Detecting non-Markovianity from continuous monitoring
Kimmo Luoma, Pinja Haikka, Jyrki Piilo
We study how non-Markovianity of an open two-level system can be detected when continuously monitoring a part of its bosonic environment. Considering a physical scenario of an atom…
Non-Markovian Quantum Probes
Pinja Haikka, Sabrina Maniscalco
We review the most recent developments in the theory of open quantum systems focusing on situations in which the reservoir memory effects, due to long-lasting and non-negligible co…
Dissipative Landau-Zener level crossing subject to continuous measurement: Excitation despite decay
Pinja Haikka, Klaus Molmer
The Landau-Zener formula provides an analytical expression for the final excitation of a quantum system after passage of an avoided crossing of two energy levels. If the two levels…
Coherence trapping and information back-flow in dephasing qubits
Carole Addis, Gregoire Brebner, Pinja Haikka +1
We study the interplay between coherence trapping, information back-flow and the form of the reservoir spectral density for dephasing qubits. We show that stationary coherence is m…
Non-Markovian qubit dynamics induced by Coulomb crystals
Massimo Borrelli, Pinja Haikka, Gabriele De Chiara +1
We investigate the back-flow of information in a system with a second-order structural phase transition, namely a quasi one-dimensional Coulomb crystal. Using standard Ramsey inter…
Non-Markovian probes in ultracold gases
Pinja Haikka, Suzanne McEndoo, Sabrina Maniscalco
We present a detailed investigation of the dynamics of two physically different qubit models, dephasing under the effect of an ultracold atomic gas in a Bose-Einstein condensed (BE…
Entanglement control via reservoir engineering in ultracold atomic gases
Suzanne McEndoo, Pinja Haikka, Gabriele de Chiara +2
We study the entanglement of two impurity qubits immersed in a Bose-Einstein condensate (BEC) reservoir. This open quantum system is particularly interesting because the reservoir…
Robust non-Markovianity in ultracold gases
Pinja Haikka, Suzanne McEndoo, Gabriele De Chiara +2
We study the effect of thermal fluctuations on a probe qubit interacting with a Bose-Einstein condensed (BEC) reservoir. The zero-temperature case was studied in [Haikka P et al 20…
Time Invariant Discord and Non-Markovianity
Pinja Haikka, Tomi H. Johnson, Sabrina Maniscalco
We study non-Markovianity and information flow for qubits experiencing local dephasing with an Ohmic class spectrum. We demonstrate the existence of a temperature-dependent critica…
Non-Markovianity, Loschmidt echo and criticality: a unified picture
Pinja Haikka, John Goold, Suzanne McEndoo +2
A simple relationship between recently proposed measures of non-Markovianity and the Loschmidt echo is established, holding for a two-level system (qubit) undergoing pure dephasing…
Quantifying, characterizing and controlling information flow in ultracold atomic gases
Pinja Haikka, Suzanne McEndoo, Gabriele de Chiara +2
We study quantum information flow in a model comprising of an impurity qubit immersed in a Bose-Einstein condensed reservoir. We demonstrate how information flux between the qubit…
Comparing different non-Markovianity measures: A case study
Pinja Haikka, James. D. Cresser, Sabrina Maniscalco
We consider two recently proposed measures of non-Markovianity applied to a particular quantum process describing the dynamics of a driven qubit in a structured reservoir. The moti…
Non-Markovian dynamics of a damped driven two-state system
Pinja Haikka, Sabrina Maniscalco
We study a driven two-state system interacting with a structured environment. We introduce the non-Markovian master equation ruling the system dynamics, and we derive its analytic…