Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR640 papers
- The University of SydneyAU475 papers
- University of BirminghamGB381 papers
- University of CopenhagenDK357 papers
- Instituto de Astrofísica de CanariasES341 papers
- Universidad de La LagunaES308 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR304 papers
- California Institute of TechnologyUS282 papers
- Center for Astrophysics Harvard & SmithsonianUS281 papers
- European Southern ObservatoryCL265 papers
- Astrophysique, Instrumentation et ModélisationFR259 papers
- Osservatorio Astronomico di PadovaIT258 papers
24 papers · 2 filters
Particle current statistics in driven mesoscale conductors
Marlon Brenes, Giacomo Guarnieri, Archak Purkayastha +3
We propose a highly-scalable method to compute the statistics of charge transfer in driven conductors. The framework can be applied in situations of non-zero temperature, strong co…
Optimizing the number of measurements for vibrational structure on quantum computers: coordinates and measurement schemes
Marco Majland, Rasmus Berg Jensen, Mads Greisen Højlund +2
One of the primary challenges prohibiting demonstrations of practical quantum advantages for near-term devices amounts to excessive measurement overheads for estimating relevant ph…
Efficient excitation-transfer across fully connected networks via local-energy optimization
S. Sgroi, G. Zicari, A. Imparato +1
We study the excitation transfer across a fully connected quantum network whose sites energies can be artificially designed. Starting from a simplified model of a broadly-studied p…
Accumulative reservoir construction: Bridging continuously relaxed and periodically refreshed extended reservoirs
Gabriela Wojtowicz, Archak Purkayastha, Michael Zwolak +1
The simulation of open many-body quantum systems is challenging, requiring methods to both handle exponentially large Hilbert spaces and represent the influence of (infinite) parti…
Emergence of highly coherent quantum subsystems of a noisy and dense spin system
A. Beckert, M. Grimm, N. Wili +6
Quantum sensors and qubits are usually two-level systems (TLS), the quantum analogs of classical bits which assume binary values '0' or '1'. They are useful to the extent to which…
Heat-based circuits using quantum rectification
Kasper Poulsen, Nikolaj T. Zinner
With increased power consumption of modern computer components, heat-based circuitry has become ever more relevant due to a lower power expense to process logic bits of information…
Light-matter entanglement after above-threshold ionization processes in atoms
Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell +4
Light-matter entanglement plays a fundamental role in many applications of quantum information science. Thus, finding processes where it can be observed is an important task. Here,…
Enhanced metrology at the critical point of a many-body Rydberg atomic system
Dong-Sheng Ding, Zong-Kai Liu, Bao-Sen Shi +3
The spectral properties of an interacting many-body system may display critical character and have potential applications in precision metrology. Here, we demonstrate such many-bod…
Symmetry-Based Singlet-Triplet Excitation in Solution Nuclear Magnetic Resonance
Mohamed Sabba, Nino Wili, Christian Bengs +2
Coupled pairs of spin-1/2 nuclei support one singlet state and three triplet states. In many circumstances the nuclear singlet order, defined as the difference between the singlet…
Quantum electrodynamics of intense laser-matter interactions: A tool for quantum state engineering
Philipp Stammer, Javier Rivera-Dean, Andrew Maxwell +5
Intense laser-matter interactions are at the center of interest in research and technology since the development of high power lasers. They have been widely used for fundamental st…
Quantum thermodynamics with fast driving and strong coupling via the mesoscopic leads approach
Artur M. Lacerda, Archak Purkayastha, Michael Kewming +2
Understanding the thermodynamics of driven quantum systems strongly coupled to thermal baths is a central focus of quantum thermodynamics and mesoscopic physics. A variety of diffe…
Universal subdiffusive behavior at band edges from transfer matrix exceptional points
Madhumita Saha, Bijay Kumar Agarwalla, Manas Kulkarni +1
We discover a deep connection between parity-time (PT) symmetric optical systems and quantum transport in one-dimensional fermionic chains in a two-terminal open system setting. Th…
Multiqubit state learning with entangling quantum generative adversarial networks
S. E. Rasmussen, N. T. Zinner
The increasing success of classical generative adversarial networks (GANs) has inspired several quantum versions of GANs. Fully quantum mechanical applications of such quantum GANs…
Interaction of quantum systems with single pulses of quantized radiation
Victor Rueskov Christiansen, Alexander Holm Kiilerich, Klaus Mølmer
The interaction of a propagating pulse of quantum radiation with a localized quantum system can be described by a cascaded master equation with a distinct initially populated input…
Dark-State-Induced Heat Rectification
Kasper Poulsen, Nikolaj T. Zinner
Heat and noise control is essential for the continued development of quantum technologies. For this purpose, a particularly powerful tool is the heat rectifier, which allows for he…
Parameterized Two-Qubit Gates for Enhanced Variational Quantum Eigensolver
S. E. Rasmussen, N. T. Zinner
The variational quantum eigensolver is a prominent hybrid quantum-classical algorithm expected to impact near-term quantum devices. They are usually based on a circuit ansatz consi…
Manipulating synthetic gauge fluxes via multicolor dressing of Rydberg-atom arrays
Xiaoling Wu, Fan Yang, Shuo Yang +4
Arrays of highly excited Rydberg atoms can be used as powerful quantum simulation platforms. Here, we introduce an approach that makes it possible to implement fully controllable e…
Gaussian theory for estimating fluctuating perturbations with back action evasive oscillator variables
Jesper Hasseriis Mohr Jensen, Klaus Mølmer
We apply a Gaussian state formalism to track fluctuating perturbations that act on the position and momentum quadrature variables of a harmonic oscillator. Following a seminal prop…
Deterministic Photon Sorting in Waveguide QED Systems
Fan Yang, Mads M. Lund, Thomas Pohl +2
Sorting quantum fields into different modes according to their Fock-space quantum numbers is a highly desirable quantum operation. In this Letter, we show that a pair of two-level…
Periodically refreshed quantum thermal machines
Archak Purkayastha, Giacomo Guarnieri, Steve Campbell +2
We introduce unique class of cyclic quantum thermal machines (QTMs) which can maximize their performance at the finite value of cycle duration where they are most irreversible.…
Field-theoretical approach to open quantum systems and the Lindblad equation
Hans C. Fogedby
We develop a systematic field-theoretical approach to open quantum systems based on condensed-matter many-body methods. The time evolution of the reduced density matrix for the ope…
Quantum non-demolition measurements of moving target states
A. L. Andersen, K. Mølmer
We present a protocol for probing the state of a quantum system by its resonant coupling and entanglement with a meter system. By continuous measurement of a time evolving meter ob…
Quantum nonlinear metasurfaces from dual arrays of ultracold atoms
Simon Panyella Pedersen, Lida Zhang, Thomas Pohl
Atoms in a sub-wavelength lattices have remarkable optical properties that have become of high scientific and technological significance. Here, we show how the coupling of light to…
Lyapunov equation in open quantum systems and non-Hermitian physics
Archak Purkayastha
The continuous-time differential Lyapunov equation is widely used in linear optimal control theory, a branch of mathematics and engineering. In quantum physics, it is known to appe…