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After-gate attack on a quantum cryptosystem
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1,345 views
We present a method to control the detection events in quantum key distribution systems that use gated single-photon detectors. We employ bright pulses as faked states, tim...
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Noise correlations of one-dimensional Bose mixtures in optic
QuantikiVideo
1,556 views
We study the noise correlations of one-dimensional binary Bose mixtures, as a probe of their quantum phases. In previous work, we found a rich structure of many-body phases...
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Indirect quantum tomography of quadratic Hamiltonians
QuantikiVideo
806 views
A number of many-body problems can be formulated using Hamiltonians that are quadratic in the creation and annihilation operators. Here, we show how such quadratic Hamilton...
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Distinguishing quantum and classical transport through nanos
QuantikiVideo
663 views
We consider the question of how to distinguish quantum from classical transport through nanostructures. To address this issue we have derived two inequalities for temporal ...
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Noise-enhanced classical and quantum capacities in communica
QuantikiVideo
348 views
The unavoidable presence of noise is thought to be one of the major problems to solve in order to pave the way for implementing quantum information technologies in realisti...
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The power of symmetric extensions for entanglement detection
QuantikiVideo
1,033 views
In this paper, we present new progress on the study of the symmetric extension criterion for separability. First, we show that a perturbation of order O(1/N) is sufficient ...
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Optimal quantum learning of a unitary transformation
QuantikiVideo
1,002 views
We prove that the optimal strategy to store an unknown group transformation into a quantum memory is to apply the available uses in parallel on a suitable entangled state. ...
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Quantum stochastic walks: A generalization of classical rand
QuantikiVideo
1,096 views
We introduce the quantum stochastic walk (QSW), which determines the evolution of generalized quantum mechanical walk on a graph that obeys a quantum stochastic equation of...
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Adiabatic Gate Teleportation
QuantikiVideo
1,286 views
The difficulty in producing precisely timed and controlled quantum gates is a significant source of error in many physical implementations of quantum computers. Here we int...
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Upper bounds on fault tolerance thresholds of noisy Clifford
QuantikiVideo
630 views
We consider the possibility of adding noise to a quantum circuit to make it efficiently simulatable classically. In previous works this approach has been used to derive upp...
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