128 citations · 464 across the 19 of their papers we have counts for
19 papers
Catalytic enhancement in the performance of the microscopic two-stroke heat engine
Tanmoy Biswas, Marcin Łobejko, Paweł Mazurek +1
We consider a model of heat engine operating in the microscopic regime: the two-stroke engine. It produces work and exchanges heat in two discrete strokes that are separated in tim…
Catalytic advantage in Otto-like two-stroke quantum engines
Marcin Łobejko, Tanmoy Biswas, Paweł Mazurek +1
We demonstrate how to incorporate a catalyst to enhance the performance of a heat engine. Specifically, we analyze efficiency in one of the simplest engines models, which operates…
Nonreciprocal Quantum Batteries
Borhan Ahmadi, Paweł Mazurek, Paweł Horodecki +1
Nonreciprocity, arising from the breaking of time-reversal symmetry, has become a fundamental tool in diverse quantum technology applications. It enables directional flow of signal…
The asymptotic emergence of the Second Law for a repeated charging process
Marcin Łobejko, Paweł Mazurek, Michał Horodecki
In one of its versions, the Second Law states: "It is impossible to construct an engine which will work in a complete cycle, and produces no effect except the raising of a weight a…
Extraction of ergotropy: free energy bound and application to open cycle engines
Tanmoy Biswas, Marcin Łobejko, Paweł Mazurek +2
The second law of thermodynamics uses change in free energy of macroscopic systems to set a bound on performed work. Ergotropy plays a similar role in microscopic scenarios, and is…
Catalysis in Charging Quantum Batteries
Ricard Ravell Rodriguez, Borhan Ahmadi, Pawel Mazurek +3
We propose a novel approach for optimization of charging of harmonic oscillators (quantum batteries) coupled to a harmonic oscillator (charger), driven by laser field. We demonstra…
Thermodynamics of Minimal Coupling Quantum Heat Engines
Marcin Łobejko, Paweł Mazurek, Michał Horodecki
The minimal-coupling quantum heat engine is a thermal machine consisting of an explicit energy storage system, heat baths, and a working body, which alternatively couples to subsys…
Quantum error correction codes and absolutely maximally entangled states
Paweł Mazurek, Máté Farkas, Andrzej Grudka +2
For every stabiliser -qudit absolutely maximally entangled state, we present a method for determining the stabiliser generators and logical operators of a corresponding quantum…
Second law of thermodynamics for batteries with vacuum state
Patryk Lipka-Bartosik, Paweł Mazurek, Michał Horodecki
In stochastic thermodynamics work is a random variable whose average is bounded by the change in the free energy of the system. In most treatments, however, the work reservoir that…
Generalized XOR non-locality games with graph description on a square lattice
Monika Rosicka, Paweł Mazurek, Andrzej Grudka +1
We propose a family of non-locality unique games for 2 parties based on a square lattice on an arbitrary surface. We show that, due to structural similarities with error correction…
Thermal Processes and State Achievability
Paweł Mazurek
A complete characterization of the set of states that can be achieved through Thermal Processes (TP) is given by describing all vertices, edges and facets of the allowed set of sta…
Decomposability and Convex Structure of Thermal Processes
Paweł Mazurek, Michał Horodecki
We present an example of a Thermal Process for a system of energy levels, which cannot be performed without an instant access to the whole energy space. This Thermal Process is…
Sharp transitions in low-number quantum dots Bayesian magnetometry
Paweł Mazurek, Michał Horodecki, Łukasz Czekaj +1
We consider Bayesian estimate of static magnetic field, characterized by a prior Gaussian probability distribution, in systems of a few electron quantum dot spins interacting with…
Simple scheme for encoding and decoding a qubit in unknown state for various topological codes
Justyna Łodyga, Paweł Mazurek, Andrzej Grudka +1
We present a scheme for encoding and decoding an unknown state for CSS codes, based on syndrome measurements. We illustrate our method by means of Kitaev toric code, defected-latti…
The decay of quantum correlations between quantum dot spin qubits and the characteristics of its magnetic field dependence
Paweł Mazurek, Katarzyna Roszak, Paweł Horodecki
We address the question of the role of quantum correlations beyond entanglement in context of quantum magnetometry. To this end, we study the evolution of the quantum discord, meas…
Can communication power of separable correlations exceed that of entanglement resource?
Paweł Horodecki, Jan Tuziemski, Paweł Mazurek +1
The scenario of remote state preparation with shared correlated quantum state and one bit of forward communication [B. Dakic et al. Nature Physics 8, 666-670 (2012)] is considered.…
Sensitivity of the decay of entanglement of quantum dot spin qubits to the magnetic field
Paweł Mazurek, Katarzyna Roszak, Ravindra W. Chhajlany +1
We study the decay of entanglement of quantum dot electron-spin qubits under hyperfine interaction mediated decoherence. We show that two qubit entanglement of a single entangled i…
Anomalous decay of quantum correlations of quantum dot qubits
Katarzyna Roszak, Paweł Mazurek, Paweł Horodecki
We study the evolution of quantum correlations, quantified by the geometric discord, of two excitonic quantum dot qubits under the influence of the phonon environment. We show that…
Long-distance quantum communication over noisy networks without long-time quantum memory
Paweł Mazurek, Andrzej Grudka, Michał Horodecki +4
The problem of sharing entanglement over large distances is crucial for implementations of quantum cryptography. A possible scheme for long-distance entanglement sharing and quantu…