546 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP98 papers
- Centre National de la Recherche ScientifiqueFR85 papers
- The University of OsakaJP47 papers
- RIKENJP46 papers
- University College CorkIE46 papers
- Kyoto UniversityJP34 papers
- Nagoya UniversityJP34 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR29 papers
- Hiroshima UniversityJP28 papers
- Institute of Space and Astronautical ScienceJP28 papers
- Japan Aerospace Exploration AgencyJP27 papers
- Tohoku UniversityJP27 papers
24 papers · 2 filters
Numerical Implementation of Just-In-Time Decoding in Novel Lattice Slices Through the Three-Dimensional Surface Code
T. R. Scruby, D. E. Browne, P. Webster +1
We build on recent work by B. Brown (Sci. Adv. 6, eaay4929 (2020)) to develop and simulate an explicit recipe for a just-in-time decoding scheme in three 3D surface codes, which ca…
Determining the position of a single spin relative to a metallic nanowire
J. F. da Silva Barbosa, M. Lee, P. Campagne-Ibarcq +9
The nanoscale localization of individual paramagnetic defects near an electrical circuit is an important step for realizing hybrid quantum devices with strong spin-microwave photon…
Cryogenic amplification of image-charge detection for readout of quantum states of electrons on liquid helium
Asem Elarabi, Erika Kawakami, Denis Konstantinov
Accurate detection of quantum states is a vital step in the development of quantum computing. Image-charge detection of quantum states of electrons on liquid helium can potentially…
Motional Quantum States of Surface Electrons on Liquid Helium in a Tilted Magnetic Field
A. A. Zadorozhko, J. Chen, A. D. Chepelianskii +1
The Jaynes-Cummings model (JCM), one of the paradigms of quantum electrodynamics, was introduced to describe interaction between light and a fictitious two-level atom. Recently it…
Quantum reference frame transformations as symmetries and the paradox of the third particle
Marius Krumm, Philipp A. Hoehn, Markus P. Mueller
In a quantum world, reference frames are ultimately quantum systems too -- but what does it mean to "jump into the perspective of a quantum particle"? In this work, we show that qu…
Connecting scrambling and work statistics for short-range interactions in the harmonic oscillator
Mathias Mikkelsen, Thomás Fogarty, Thomas Busch
We investigate the relationship between information scrambling and work statistics after a quench for the paradigmatic example of short-range interacting particles in a one-dimensi…
Simplifying the design of multilevel thermal machines using virtual qubits
Ayaka Usui, Wolfgang Niedenzu, Marcus Huber
Quantum thermodynamics often deals with the dynamics of small quantum machines interfacing with a large and complex environment. Virtual qubits, collisional models and reset master…
Bayesian parameter estimation using Gaussian states and measurements
Simon Morelli, Ayaka Usui, Elizabeth Agudelo +1
Bayesian analysis is a framework for parameter estimation that applies even in uncertainty regimes where the commonly used local (frequentist) analysis based on the Cramér-Rao boun…
Effects of cavity birefringence in polarisation-encoded quantum networks
Ezra Kassa, William J Hughes, Shaobo Gao +1
The generation of entanglement between distant atoms via single photons is the basis for networked quantum computing, a promising route to large-scale trapped-ion and trapped-atom…
Cavity-enhanced magnetometer with a spinor Bose-Einstein condensate
Karol Gietka, Farokh Mivehvar, Thomas Busch
We propose a novel type of composite light-matter magnetometer based on a transversely driven multi-component Bose-Einstein condensate coupled to two distinct electromagnetic modes…
Persistence of Topological Phases in Non-Hermitian Quantum Walks
Vikash Mittal, Aswathy Raj, Sanjib Dey +1
Discrete-time quantum walks are known to exhibit exotic topological states and phases. Physical realization of quantum walks in a noisy environment may destroy these phases. We inv…
Speedup of the Quantum Adiabatic Algorithm using Delocalization Catalysis
Chenfeng Cao, Jian Xue, Nic Shannon +1
We propose a method to speed up the quantum adiabatic algorithm using catalysis by many-body delocalization. This is applied to random-field antiferromagnetic Ising spin models. Th…
Simulating the same physics with two distinct Hamiltonians
Karol Gietka, Ayaka Usui, Jianqiao Deng +1
We develop a framework and give an example for situations where two distinct Hamiltonians living in the same Hilbert space can be used to simulate the same physics. As an example o…
A many-body heat engine at criticality
Thomás Fogarty, Thomas Busch
We show that a quantum Otto cycle in which the medium, an interacting ultracold gas, is driven between a superfluid and an insulating phase can outperform similar single particle c…
Fast parametric two-qubit gates with suppressed residual interaction using a parity-violated superconducting qubit
Atsushi Noguchi, Alto Osada, Shumpei Masuda +7
We demonstrate fast two-qubit gates using a parity-violated superconducting qubit consisting of a capacitively-shunted asymmetric Josephson-junction loop under a finite magnetic fl…
A Feshbach engine in the Thomas-Fermi regime
Tim Keller, Thomás Fogarty, Jing Li +1
Bose-Einstein condensates can be used to produce work by tuning the strength of the interparticle interactions with the help of Feshbach resonances. In inhomogeneous potentials, th…
In situ thermometry of a cold Fermi gas via dephasing impurities
Mark T. Mitchison, Thomàs Fogarty, Giacomo Guarnieri +3
The precise measurement of low temperatures is a challenging, important and fundamental task for quantum science. In particular, in-situ thermometry is highly desirable for cold at…
Enhanced ion-cavity coupling through cavity cooling in the strong coupling regime
Costas Christoforou, Corentin Pignot, Ezra Kassa +2
Incorporating optical cavities in ion traps is becoming increasingly important in the development of photonic quantum networks. However, the presence of the cavity can hamper effic…
Universal and optimal coin sequences for high entanglement generation in 1D discrete time quantum walks
Aikaterini Gratsea, Friederike Metz, Thomas Busch
Entanglement is a key resource in many quantum information applications and achieving high values independently of the initial conditions is an important task. Here we address the…
Blockade of phonon hopping in trapped ions in the presence of multiple local phonons
Ryutaro Ohira, Shota Kume, Kyoichi Takayama +3
Driving an ion at a motional sideband transition induces the Jaynes--Cummings (JC) interaction. This JC interaction creates an anharmonic ladder of JC eigenstates, resulting in the…
Spontaneous emission and energy shifts of a Rydberg rubidium atom close to an optical nanofiber
E. Stourm, M. Lepers, J. Robert +3
In this paper, we report on numerical calculations of the spontaneous emission rates and Lamb shifts of a atom in a Rydberg-excited state lo…
Chiral excitation of a single atom by a single photon in a guided mode of a nanofiber
Fam Le Kien, Sile Nic Chormaic, Thomas Busch
We study the interaction between a single two-level atom and a single-photon probe pulse in a guided mode of a nanofiber. We examine the situation of chiral interaction, where the…
Optomechanical cooling by STIRAP-assisted energy transfer an alternative route towards the mechanical ground state
Bijita Sarma, Thomas Busch, Jason Twamley
Standard optomechanical cooling methods ideally require weak coupling and cavity damping rates which enable the motional sidebands to be well resolved. If the coupling is too large…
Pump Probe Spectroscopy of Bose Polarons: Dynamical Formation and Coherence
S. I. Mistakidis, G. C. Katsimiga, G. M. Koutentakis +2
We propose and investigate a pump-probe spectroscopy scheme to unveil the time-resolved dynamics of fermionic or bosonic impurities immersed in a harmonically trapped Bose-Einstein…