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In this work the author present a method for optimizing quantum circuits architecture, based on the notion of a quantum comb, which describes a circuit board where one can insert variable subcircuits. Unexplored quantum processing tasks, such as cloning and storing or retrieving of gates, can be optimized, along with setups for tomography and discrimination or estimation of quantum circuits.

Quantum Circuits Architecture

CHIRIBELLA, GIULIO;D'ARIANO, GIACOMO;PERINOTTI, PAOLO
2008-01-01

Abstract

In this work the author present a method for optimizing quantum circuits architecture, based on the notion of a quantum comb, which describes a circuit board where one can insert variable subcircuits. Unexplored quantum processing tasks, such as cloning and storing or retrieving of gates, can be optimized, along with setups for tomography and discrimination or estimation of quantum circuits.
2008
The Physics category includes resources of a broad, general nature that contain materials from all areas of physics, The category also includes resources specifically concerned with the following physics sub-fields: mathematical physics, particle and nuclear physics, physics of fluids and plasmas, quantum physics, and theoretical physics.
PHYSICAL REVIEW LETTERS
sì
WOS:000258538600001
Sì, ma tipo non specificato
Inglese
Internazionale
STAMPA
101
060401-1
060401-4
This work is a fundamental new step forward in Quantum Mechanics, since it introduces the new notions of "quantum comb" and "quantum tester" which generalize the notions of quantum channel and POVM. This approach allows one to construct the first systematic method for optimizing quantum circuit architecture, with applications to quantum algorithms, quantum protocols, optimization of measurements, of feedback, and more. It also allows one to formulate and solve new problems, such as the optimal cloning of unitary operators, and the optimal quantum learning of oracles. There have been already 3 PRL published (in addition to the present one) with applications of the method.
Quantum Mechanics; Quantum Information; Quantum circuits; Quantum Computation; Quantum Measurements
http://prl.aps.org/pdf/PRL/v101/i6/e060401
3
info:eu-repo/semantics/article
262
Chiribella, Giulio; D'Ariano, Giacomo; Perinotti, Paolo
1 Contributo su Rivista::1.1 Articolo in rivista
none
1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/107508
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