315 citations · 796 across the 12 of their papers we have counts for
13 papers
Reducing the cost of ancilla purification for Majorana quantum computation
Piotr Ćwikliński, Piotr {Ć}wikli{ń}ski, Łukasz Fojcik +2
Braiding Majorana zero modes does not by itself provide a universal set of quantum gates. Additional operations can be supplied through ancillary states, whose preparation need not…
Thermodynamic Value of XOR-Game-Induced Side Information in a Szilard Engine
Piotr Ćwikliński
In this work, we study the reversible work value of a binary side-information channel supplied to a Szilard engine. The working system is a classical thermal bit, while the feedbac…
Battery-Explicit Thermodynamic Witnesses of Bell Post-Quantumness
Piotr Ćwikliński
We introduce a battery-explicit thermodynamic witness of post-quantum Bell correlations. In each round, a single supplied excitation is routed into an explicit two-level battery if…
Thermal Operations in general are not memoryless
Hanna Wojewódka-Ściążko, Maciej Stankiewicz, Edgar A. Aguilar +6
So-called Thermal Operations seem to describe the most fundamental and reasonable set of operations allowable for state transformations at an ambient inverse temperature . Howev…
Generic appearance of objective results in quantum measurements
J. K. Korbicz, E. A. Aguilar, P. Ćwikliński +1
Measurement is of central interest in quantum mechanics as it provides the link between the quantum world and the world of everyday experience. One of the features of the latter is…
A sufficient set of experimentally implementable thermal operations
Chris Perry, Piotr Ćwikliński, Janet Anders +2
Recent work using tools from quantum information theory has shown that at the nanoscale where quantum effects become prevalent, there is not one thermodynamical second law but many…
Construction and properties of a class of private states in arbitrary dimensions
Adam Rutkowski, Michał Studziński, Piotr Ćwikliński +1
We present a construction of quantum states in dimension that has at least 1 dit of ideal key, called private dits (pdits), which covers most of the known examples of private b…
Towards fully quantum second laws of thermodynamics: limitations on the evolution of quantum coherences
Piotr Ćwikliński, Michał Studziński, Michał Horodecki +1
The second law of thermodynamics places a limitation into which states a system can evolve into. For systems in contact with a heat bath, it can be combined with the law of energy…
Group representation approach to 1 - N universal quantum cloning machines
Michał Studziński, Piotr Ćwikliński, Michał Horodecki +1
In this work, we revisit the problem of finding an admissible region of fidelities obtained after an application of an arbitrary universal quantum cloner which ha…
Local random quantum circuits are approximate polynomial-designs - numerical results
Piotr Ćwikliński, Michał Horodecki, Marek Mozrzymas +2
We numerically investigate the statement that local random quantum circuits acting on n qubits composed of polynomially many nearest neighbour two-qubit gates form an approximate u…
The Power of Noisy Fermionic Quantum Computation
Fernando de Melo, Piotr Ćwikliński, Barbara M. Terhal
We consider the realization of universal quantum computation through braiding of Majorana fermions supplemented by unprotected preparation of noisy ancillae. It has been shown by B…
Local random quantum circuits are approximate polynomial-designs
Fernando G. S. L. Brandao, Aram W. Harrow, Michal Horodecki
We prove that local random quantum circuits acting on n qubits composed of O(t^{10} n^2) many nearest neighbor two-qubit gates form an approximate unitary t-design. Previously it w…
Region of fidelities for a 1 -> N universal qubit quantum cloner
Piotr Ćwikliński, Michał Horodecki, Michał Studziński
We analyze a region of fidelities for qubit which is obtained after an application of a 1 -> N universal quantum cloner. We express the allowed region for fidelities in terms of ov…