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Decoherence-Resilient Linear Optical Two-Qubit Quantum Gate
optical controlled -Z gate on two logical qubits encoded into pairs of physical qubits. This decoherenceresilient two-qubit gate on logical qubits is realized using a suitable four-qubit...
Optics (including laser optics and quantum optics)
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Quantifying entanglement of a two-qubit system via measurable and invariant moments of its partially transposed density matrix
the purity, negativity, and a universal entanglement witness for two-qubit entanglement. We show how the negativity of a two-qubit state can be calculated from just three fundamental and independent two-<...
BH - Optika, masery a lasery
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Dominant couplings in qubit networks with controlled interactions
qubit networks under two and three-qubit interactions. As representatives of three) with one and two control qubits.Systems evolving under the influence of competing two-body and three-body of st...
BE - Teoretická fyzika
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Two methods for measuring Bell nonlocality via local unitary invariants of two-qubit systems in Hong-Ou-Mandel interferometers
We describe a direct method to experimentally determine local two-qubit-qubit state. We use this framework to analyze two different kinds of two-qubit two-qubit state up to local...
Optics (including laser optics and quantum optics)
- 2018 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Entanglement and entropy squeezing in the system of two qubits interacting with a two-mode field in the context of power low potentials
We study the dynamics of two non-stationary qubits, allowing for dipole-dipole of two-mode pair coherent states of power-low potentials. We focus on three these quantities can be affected by the qubit-qubit
Optics (including laser optics and quantum optics)
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Optical implementation of the encoding of two qubits to a single qutrit
for encoding two qubits into one qutrit. In this protocol, Alice encodes an arbitrary pure product state of two qubits into a state of one qutrit. Bob can then restore either of the twoencoded qubit state...
BH - Optika, masery a lasery
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Arbitrary accuracy iterative quantum phase estimation algorithm using a single ancillary qubit: A two-qubit benchmark
We discuss the implementation of an iterative quantum phase estimation algorithm with a single ancillary qubit. We suggest using this algorithm as a benchmark for multiqubit implementations. Furthermore, we describe in detail the smallest po...
BE - Teoretická fyzika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Experimental investigation of a four-qubit linear-optical quantum logic circuit
We experimentally demonstrate and characterize a four-qubit linear-optical quantum logic circuit. Our robust and versatile scheme exploits encoding of two qubits into polarization and path degrees of single photons and invo...
BH - Optika, masery a lasery
- 2016 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Network Implementation of Covariant Two-Qubit Quantum Operations
A six-qubit quantum network consisting of conditional unitary gates is presented which is capable of implementing a large class of covariant two-qubit quantum operations. Optimal covariant NOT operations for one- and tw...
BE - Teoretická fyzika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Experimental measurement of collective nonlinear entanglement witness for two qubits
two-qubit states. In the latter case it can be used to measure entanglement of photonic polarization-encoded two-qubit states, i.e., maximally entangled, separable and robust against typical experimental shortcomi...
BH - Optika, masery a lasery
- 2016 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
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