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
29 papers · 2 filters
Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit
Marina Kudra, Martin Jirlow, Mikael Kervinen +5
Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. To correct for this type of error, one can encode the logical qubit in code spa…
Quantum repeaters: From quantum networks to the quantum internet
Koji Azuma, Sophia E. Economou, David Elkouss +4
A quantum internet is the holy grail of quantum information processing, enabling the deployment of a broad range of quantum technologies and protocols on a global scale. However, n…
Local Probabilistic Decoding of a Quantum Code
T. R. Scruby, K. Nemoto
flip is an extremely simple and maximally local classical decoder which has been used to great effect in certain classes of classical codes. When applied to quantum codes there exi…
Squeezing and overcoming the Heisenberg scaling with spin-orbit coupled quantum gases
Karol Gietka, Helmut Ritsch
We predict that exploiting spin-orbit coupling in a harmonically trapped spinor quantum gas can lead to scaling of the optimal measurement precision beyond the Heisenberg scaling.…
Direction-dependent coupling between a nanofiber-guided light field and a two-level atom with an electric quadrupole transition
Fam Le Kien, Sile Nic Chormaic, Thomas Busch
We study the directional dependence of the coupling between a nanofiber-guided light field and a two-level atom with an electric quadrupole transition. We examine the situation whe…
Impact of the form of weighted networks on the quantum extreme reservoir computation
Aoi Hayashi, Akitada Sakurai, Shin Nishio +2
The quantum extreme reservoir computation (QERC) is a versatile quantum neural network model that combines the concepts of extreme machine learning with quantum reservoir computati…
Interaction enhanced quantum heat engine
Mohamed Boubakour, Thomás Fogarty, Thomas Busch
We study a minimal quantum Otto heat engine, where the working medium consists of an interacting few-body system in a harmonic trap. This allows us to consider the interaction stre…
Entropy of the quantum work distribution
Anthony Kiely, Eoin O'Connor, Thomás Fogarty +2
The statistics of work done on a quantum system can be quantified by the two-point measurement scheme. We show how the Shannon entropy of the work distribution admits a general upp…
Solution of SAT Problems with the Adaptive-Bias Quantum Approximate Optimization Algorithm
Yunlong Yu, Chenfeng Cao, Xiang-Bin Wang +2
The quantum approximate optimization algorithm (QAOA) is a promising method for solving certain classical combinatorial optimization problems on near-term quantum devices. When emp…
Interaction of two Rydberg atoms in the vicinity of an optical nanofibre
E. Stourm, M. Lepers, J. Robert +3
We consider two rubidium atoms, prepared in the same S or P Rydberg states near an optical nanofibre. We determine the van der Waals interaction between them and identify novel fea…
Quantum superposition of causal structures as a universal resource for local implementation of nonlocal quantum operations
Pratik Ghosal, Arkaprabha Ghosal, Debarshi Das +1
Spatial separation restricts the set of locally implementable quantum operations on distributed multipartite quantum systems. We propose that indefinite causal structure arising du…
Continuous phase transition induced by non-Hermiticity in the quantum contact process model
Wen-Bin He, Jiasen Jin, Fernando Iemini +1
Non-Hermitian quantum system recently have attracted a lots of attentions theoretically and experimentally. However, the results based on the single-particle picture may not apply…
Bootstrapping the Kronig-Penney Model
Matthew J. Blacker, Arpan Bhattacharyya, Aritra Banerjee
Recently, bootstrap methods from conformal field theory have been adapted for studying the energy spectrum of various quantum mechanical systems. In this paper, we consider the app…
Distributed quantum sensing with optical lattices
Jose Carlos Pelayo, Karol Gietka, Thomas Busch
In distributed quantum sensing the correlations between multiple modes, typically of a photonic system, are utilized to enhance the measurement precision of an unknown parameter. I…
Fast erasure decoder for hypergraph product codes
Nicholas Connolly, Vivien Londe, Anthony Leverrier +1
We propose a decoder for the correction of erasures with hypergraph product codes, which form one of the most popular families of quantum LDPC codes. Our numerical simulations show…
Gradient-descent quantum process tomography by learning Kraus operators
Shahnawaz Ahmed, Fernando Quijandría, Anton Frisk Kockum
We perform quantum process tomography (QPT) for both discrete- and continuous-variable quantum systems by learning a process representation using Kraus operators. The Kraus form en…
Memoryless quantum repeaters based on cavity-QED and coherent states
Pei-Zhe Li, Peter van Loock
A quantum repeater scheme based on cavity-QED and quantum error correction of channel loss via rotation-symmetric bosonic codes (RSBC) is proposed to distribute atomic entangled st…
Leggett-Garg inequalities with deformed Pegg-Barnett phase observables
Hiroo Azuma, William J. Munro, Kae Nemoto
We investigate the Leggett-Garg inequalities (LGIs) for a boson system whose observables are given by deforming the Pegg-Barnett phase operators. We consider two observables and sh…
Quantum control and quantum speed limits in supersymmetric potentials
Christopher Campbell, Jing Li, Thomas Busch +1
Supersymmetry allows one to build a hierarchy of Hamiltonians that share the same spectral properties and which are pairwise connected through common superpotentials. The iso-spect…
Resource Reduction in Multiplexed High-Dimensional Quantum Reed-Solomon Codes
Shin Nishio, Nicolò Lo Piparo, Michael Hanks +2
Quantum communication technologies will play an important role in quantum information processing in the near future as we network devices together. However, their implementation is…
Activating information backflow with the assistance of quantum SWITCH
Ananda G. Maity, Samyadeb Bhattacharya
There are certain dynamics while being non-Markovian, do never exhibit information backflow. We show that if two such dynamical maps are considered in a scenario where the order of…
Transfer of angular momentum of guided light to an atom with an electric quadrupole transition near an optical nanofiber
Fam Le Kien, Sile Nic Chormaic, Thomas Busch
We study the transfer of angular momentum of guided photons to a two-level atom with an electric quadrupole transition near an optical nanofiber. We show that the generation of the…
A Note on Shape Invariant Potentials for Discretized Hamiltonians
Jonas Sonnenschein, Mirian Tsulaia
Using the method of the "exact discretization" of the Schrödinger equation, we propose a particular discretized version of the N=2 Supersymmetric Quantum Mechanics. After defining…
Accelerated Magnonic Motional Cooling with Deep Reinforcement Learning
Bijita Sarma, Sangkha Borah, A Kani +1
Achieving fast cooling of motional modes is a prerequisite for leveraging such bosonic quanta for high-speed quantum information processing. In this work, we address the aspect of…