نتایج جستجو برای: quantum interference

تعداد نتایج: 386868  

2016
Ciarán M Lee John H Selby Jonathan Barrett Carlo Maria Scandolo Andrew J P Garner Oscar C O Dahlsten Yoshifumi Nakata Joe Henson Raymond Lal Matthew F Pusey Malte C Tichy

The advent of quantum computing has challenged classical conceptions of which problems are efficiently solvable in our physical world. Thismotivates the general study of howphysical principles bound computational power. In this paper we show that some of the essentialmachinery of quantum computation—namely reversible controlled transformations and the phase kick-backmechanism— exist in any oper...

2017
Robert Sewell

Q uantum interference effects lie at the heart of technologies that promise radically new capabilities for sensors, secure communications, and computing. Most existing experiments and applications rely on one photon interfering with itself, or two photons interfering with each other. However, the interference of a larger number of particles leads to a richer variety of phenomena, and may enable...

2016
Ciarán M. Lee John H. Selby

Quantum interference, manifest in the two slit experiment, lies at the heart of several quantum computational speed-ups and provides a striking example of a quantum phenomenon with no classical counterpart. An intriguing feature of quantum interference arises in a variant of the standard two slit experiment, in which there are three, rather than two, slits. The interference pattern in this set-...

2002
Christoph H. Keitel

We discuss quantum interference effects in a three-level atom in Λ-configuration, where both transitions from the upper state to the lower states are driven by a single monochromatic laser field. Although the system has two lower states, quantum interference is possible because there are interfering pathways to each of the two lower states. The additional interference terms allow for interestin...

Journal: :International Journal of Theoretical Physics 2006

Journal: :Applied Physics Letters 2022

Modeling of photonic devices traditionally involves solving the equations light–matter interaction and light propagation. Here, we demonstrate an alternative modeling methodology by reproducing optical device functionality using a quantum computer. As illustration, simulate interference on thin absorbing film. Such can lead to either perfect absorption or total transmission through film, phenom...

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