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81 893 (0,238s)

Result

Three-qubit quantum gates and filters for linear optical quantum-information processing,

We present a linear optical scheme for the implementation of a three-qubit quantum gate that can be considered as a generalization of the two-qubit partial-SWAP gate. The gate leaves unchanged all fully symmetric states of ...

BH - Optika, masery a lasery

  • 2009
  • Jx
Result

Dominant couplings in qubit networks with controlled interactions

qubit networks under two and three-qubit interactions. As representatives of three-qubit interactions we choose controlled unitary interactions (cu-interactionsSystems evolving under the influence of comp...

BE - Teoretická fyzika

  • 2015
  • Jx
  • Link
Result

Quantum information processing with three qubits

Invited talk on the topic of three qubit-quantum information processing.

IN - Informatika

  • 2005
  • O
Result

Einstein-Podolsky-Rosen steering and coherence in the family of entangled three-qubit states

Considering the system of three interacting qubits, we analyze four families of states from the point of view of bipartite correlations appearing in two-qubit subsystems of a three-qubit model, such as Ein...

Optics (including laser optics and quantum optics)

  • 2018
  • Jimp
  • Link
Result

Mixedness, Coherence and Entanglement in a Family of Three-Qubit States

We consider a family of states describing three-qubit systems. We derived formulas showing the relations between linear entropy and measures of coherence such as degree of coherence, first- and second-order correlation functions. We...

Optics (including laser optics and quantum optics)

  • 2022
  • Jimp
  • Link
Result

Minimal qubit tomography

We present, and analyze thoroughly, a highly symmetric and efficient scheme for the determination of a single-qubit state, such as the polarization properties of photons probabilities, just enough for the determination of the three ...

BH - Optika, masery a lasery

  • 2004
  • Jx
Result

Two methods for measuring Bell nonlocality via local unitary invariants of two-qubit systems in Hong-Ou-Mandel interferometers

two-qubit state up to local unitaries. We demonstrate that measuring three of the Makhlin's invariants directly one needs to use both two-qubit singlets and threeWe describe a direct method to experimentally ...

Optics (including laser optics and quantum optics)

  • 2018
  • Jimp
  • Link
Result

W-Class States-Identification and Quantification of Bell-CHSH Inequalities' Violation

We discuss a family of W-class states describing three-qubit systems. For such systems, we analyze the relations between the entanglement measures and the nonlocality parameter for a two-mode mixed state related to the two-qubit...

Optics (including laser optics and quantum optics)

  • 2024
  • Jimp
  • Link
Result

Geometric bloch vector solution to minimum-error discriminations of mixed qubit states

for N mixed qubit states. Our method covers optimal solutions for two, three, and four mixed qubit states, including a novel result for four qubit states. WeWe investigate minimum-error (ME) discrimination for mix...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2023
  • Jimp
  • Link
Result

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 states error-free but n...

BH - Optika, masery a lasery

  • 2006
  • Jx
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