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Archives: Paper

Paper published by Quantum

Paper

Barren plateaus in quantum tensor network optimization

Enrique Cervero Martín, Kirill Plekhanov, and Michael Lubasch,

Quantum 7, 974 (2023).

We analyze the barren plateau phenomenon in the variational optimization of quantum circuits inspired by matrix product states (qMPS), tree tensor networks (qTTN), and the multiscale entangl…

Paper

Adaptive measurement filter: efficient strategy for optimal estimation of quantum Markov chains

Alfred Godley and Madalin Guta,

Quantum 7, 973 (2023).

Continuous-time measurements are instrumental for a multitude of tasks in quantum engineering and quantum control, including the estimation of dynamical parameters of open quantum systems mo…

Paper

Simple master equations for describing driven systems subject to classical non-Markovian noise

Peter Groszkowski, Alireza Seif, Jens Koch, and A. A. Clerk,

Quantum 7, 972 (2023).

Driven quantum systems subject to non-Markovian noise are typically difficult to model even if the noise is classical. We present a systematic method based on generalized cumulant expansions…

Paper

Probability in many-worlds theories

Anthony J. Short,

Quantum 7, 971 (2023).

We consider how to define a natural probability distribution over worlds within a simple class of deterministic many-worlds theories. This can help us understand the typical properties of wo…

Paper

State Preparation in the Heisenberg Model through Adiabatic Spiraling

Anthony N. Ciavarella, Stephan Caspar, Marc Illa, and Martin J. Savage,

Quantum 7, 970 (2023).

An adiabatic state preparation technique, called the adiabatic spiral, is proposed for the Heisenberg model. This technique is suitable for implementation on a number of quantum simulation p…

Paper

Practical randomness amplification and privatisation with implementations on quantum computers

Cameron Foreman, Sherilyn Wright, Alec Edgington, Mario Berta, and Florian J. Curchod,

Quantum 7, 969 (2023).

We present an end-to-end and practical randomness amplification and privatisation protocol based on Bell tests. This allows the building of device-independent random number generators which…

Paper

When does a particle arrive?

Simone Roncallo, Krzysztof Sacha, and Lorenzo Maccone,

Quantum 7, 968 (2023).

We compare the proposals that have appeared in the literature to describe a measurement of the time of arrival of a quantum particle at a detector. We show that there are multiple regimes wh…

Paper

Dihedral twist liquid models from emergent Majorana fermions

Jeffrey C. Y. Teo and Yichen Hu,

Quantum 7, 967 (2023).

We present a family of electron-based coupled-wire models of bosonic orbifold topological phases, referred to as twist liquids, in two spatial dimensions. All local fermion degrees of freedo…

Paper

Characterization of variational quantum algorithms using free fermions

Gabriel Matos, Chris N. Self, Zlatko Papić, Konstantinos Meichanetzidis, and Henrik Dreyer,

Quantum 7, 966 (2023).

We study variational quantum algorithms from the perspective of free fermions. By deriving the explicit structure of the associated Lie algebras, we show that the Quantum Approximate Optimiz…

Paper

Quantum-enhanced differential atom interferometers and clocks with spin-squeezing swapping

Robin Corgier, Marco Malitesta, Augusto Smerzi, and Luca Pezzè,

Quantum 7, 965 (2023).

Thanks to common-mode noise rejection, differential configurations are crucial for realistic applications of phase and frequency estimation with atom interferometers. Currently, differential…

Paper

Simulating quantum circuits using tree tensor networks

Philipp Seitz, Ismael Medina, Esther Cruz, Qunsheng Huang, and Christian B. Mendl,

Quantum 7, 964 (2023).

We develop and analyze a method for simulating quantum circuits on classical computers by representing quantum states as rooted tree tensor networks. Our algorithm first determines a suitabl…

Paper

Beyond transcoherent states: Field states for effecting optimal coherent rotations on single or multiple qubits

Aaron Z. Goldberg, Aephraim M. Steinberg, and Khabat Heshami,

Quantum 7, 963 (2023).

Semiclassically, laser pulses can be used to implement arbitrary transformations on atomic systems; quantum mechanically, residual atom-field entanglement spoils this promise. Transcoherent…

Paper

Optimal Hamiltonian simulation for time-periodic systems

Kaoru Mizuta and Keisuke Fujii,

Quantum 7, 962 (2023).

The implementation of time-evolution operators $U(t)$, called Hamiltonian simulation, is one of the most promising usage of quantum computers. For time-independent Hamiltonians, qubitization h…

Paper

Cooperative quantum information erasure

Lorenzo Buffoni and Michele Campisi,

Quantum 7, 961 (2023).

We demonstrate an information erasure protocol that resets $N$ qubits at once. The method displays exceptional performances in terms of energy cost (it operates nearly at Landauer energy cost…

Paper

General properties of fidelity in non-Hermitian quantum systems with PT symmetry

Yi-Ting Tu, Iksu Jang, Po-Yao Chang, and Yu-Chin Tzeng,

Quantum 7, 960 (2023).

The fidelity susceptibility is a tool for studying quantum phase transitions in the Hermitian condensed matter systems. Recently, it has been generalized with the biorthogonal basis for the…

Paper

Hybrid divide-and-conquer approach for tree search algorithms

Mathys Rennela, Sebastiaan Brand, Alfons Laarman, and Vedran Dunjko,

Quantum 7, 959 (2023).

One of the challenges of quantum computers in the near- and mid- term is the limited number of qubits we can use for computations. Finding methods that achieve useful quantum improvements un…

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Coordinating editors

  • Carlo Beenakker
  • Eric Cavalcanti
  • Sevag Gharibian
  • Ujjwal Sen
  • Witlef Wieczorek
  • Ronald de Wolf

Editors

  • Elizabeth Agudelo
  • Álvaro Alhambra
  • Anurag Anshu
  • Simon Apers
  • Srinivasan Arunachalam
  • Remigiusz Augusiak
  • Miriam Backens
  • Kishor Bharti
  • Cyril Branciard
  • Dan Browne
  • Earl Campbell
  • Michele Campisi
  • Ángela Capel
  • Angelo Carollo
  • Marco Cerezo
  • Ulysse Chabaud
  • Francesco Ciccarello
  • Andrea Coladangelo
  • Ivan Contreras
  • Borivoje Dakic
  • Alexander Dalzell
  • Nicolas Delfosse
  • Abhinav Deshpande
  • Yongshan Ding
  • Vedran Dunjko
  • Philippe Faist
  • Di Fang
  • Máté Farkas
  • Omar Fawzi
  • Nicolai Friis
  • Raúl García-Patrón
  • Roohollah Ghobadi
  • Flaminia Giacomini
  • Géza Giedke
  • Aaron Goldberg
  • Daniel Grier
  • Alex Grilo
  • Tom Gur
  • Alioscia Hamma
  • Jonas Helsen
  • Philipp Höhn
  • Isaac Kim
  • Richard Küng
  • Felix Leditzky
  • Muyuan Li
  • Tongyang Li
  • Jin-Peng Liu
  • Sam MacArdle
  • Tommaso Macrì
  • Laura Mančinska
  • Olivia Di Matteo
  • Pérola Milman
  • Mark Mitchison
  • Kavan Modi
  • Tomoyuki Morimae
  • Ion Nechita
  • Bryan O'Gorman
  • Anna Pappa
  • Saverio Pascazio
  • Matthew Pusey
  • Nicolás Quesada
  • Patrick Rebentrost
  • Ansis Rosmanis
  • Krishna Kumar Sabapathy
  • Nitica Sakharwade
  • Marcelo Santos
  • Mohan Sarovar
  • Philipp Schindler
  • David Schmid
  • Gael Sentís
  • Kunal Sharma
  • Himadri Shekhar Dhar
  • Jens Siewert
  • Paul Skrzypczyk
  • André Stefanov
  • Luca Tagliacozzo
  • Jordi Tura
  • Petros Wallden
  • Xin Wang
  • Alexander Wilce
  • Magdalena Zych

Executive Board

  • Christian Gogolin
  • Marcus Huber
  • Lídia del Rio

Steering Board

  • Antonio Acín
  • Anne Broadbent
  • Harry Buhrman
  • Daniel Burgarth
  • Guido Burkard
  • Jens Eisert
  • Steven Flammia
  • Cassandra Granade
  • Aram Harrow
  • Khabat Heshami
  • Chris Heunen
  • Stacey Jeffery
  • Shelby Kimmel
  • Matthew Leifer
  • Debbie Leung
  • Chaoyang Lu
  • Chiara Macchiavello
  • Milan Mosonyi
  • Ahsan Nazir
  • Román Orús
  • Joseph M. Renes
  • Ana Maria Rey
  • Anna Sanpera
  • Jörg Schmiedmayer
  • Urbasi Sinha
  • John A. Smolin
  • Robert W. Spekkens
  • Aephraim M. Steinberg
  • Francesca Vidotto
  • Michael Walter
  • Reinhard Werner
  • Birgitta Whaley
  • Andreas Winter
  • Karol Życzkowski

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