In quantum information theory, fidelity is a measure of the "closeness" of two quantum states. It is not a metric on the space of density matricesâ€¦Â (More)

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2014

2014

- Songfeng Lu, Samuel L. Braunstein
- Quantum Information Processing
- 2014

We study the quantum version of a decision tree classifier to fill the gap between quantum computation and machine learning. Theâ€¦Â (More)

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2009

2009

- Jaroslaw Adam Miszczak, Zbigniew Puchala, Pawel Horodecki, Armin Uhlmann, Karol Zyczkowski
- Quantum Information & Computation
- 2009

We derive several bounds on fidelity between quantum states. In particular we show that fidelity is bounded from above by aâ€¦Â (More)

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2009

2009

We consider a family of vector and operator norms which we refer to as Schmidt norms. We show that these norms have several usesâ€¦Â (More)

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2008

2008

- Aurelian Isar
- 2008

Using the expression of the fidelity for the most general Gaussian quantum states, the quantum fidelity is studied for the statesâ€¦Â (More)

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2006

2006

In this paper we analyze the ground state phase diagram of a class of fermionic Hamiltonians by looking at the fidelity of groundâ€¦Â (More)

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2005

2005

We explore the effect of a systemâ€™s symmetries on fidelity decay behavior. Chaos-like exponential fidelity decay behavior occursâ€¦Â (More)

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2004

2004

- Carlton M. Caves, Krzysztof WÃ³dkiewicz
- Open Syst. Inform. Dynam.
- 2004

A noisy Gaussian channel is defined as a channel in which an input field mode is subjected to random Gaussian displacements inâ€¦Â (More)

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2003

2003

We discuss quantum fidelity decay of classically regular dynamics, in particular for an important special case of a vanishingâ€¦Â (More)

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2002

2002

We describe a protocol for continuously protecting unknown quantum states from decoherence that incorporates design principlesâ€¦Â (More)

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2001

2001

We derive a simple and general relation between the fidelity of quantum motion, characterizing the stability of quantum dynamicsâ€¦Â (More)

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