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We devise a new technique to enhance transmission of quantum information through linear optical quantum information processors. The idea is based on applying the Quantum Zeno effect to the process of photon absorption. By frequently…

A numerical model of spontaneous decay continuously monitored by a distant detector of emitted particles is constructed. It is shown that there is no quantum Zeno effect in such quantum measurement if the interaction between emitted…

量子物理 · 物理学 2009-11-07 Alexander D. Panov

The spontaneous emission is investigated for an effective atomic two-level system in an intense coherent field with frequency lower than the vacuum-induced decay width. As this additional low-frequency field is assumed to be intense,…

量子物理 · 物理学 2009-11-10 J. Evers , C. H. Keitel

We study an out-of-equilibrium quantum system in which a state connecting two reservoirs is also coupled by stimulated and spontaneous emission of photons to an antitrapped state, thus implementing particle loss. After revisiting the…

量子物理 · 物理学 2025-08-04 C. J. Bolech , T. Giamarchi

This paper considers an indirect driving model of a cavity QED system in which the left cavity wall consists of a large ensemble of two-level atoms driven by a classical laser field at a specific resonant frequency, inducing an effective…

量子物理 · 物理学 2025-03-21 Burabigul Yakup , Yi-Fang Ren , Mamat Ali Bake , Yusuf Turek

In open quantum systems, the quantum Zeno effect consists in frequent applications of a given quantum operation, e.g.~a measurement, used to restrict the time evolution (due e.g.~to decoherence) to states that are invariant under the…

量子物理 · 物理学 2025-03-19 Tim Möbus , Cambyse Rouzé

The evolution of a quantum system subjected to infinitely many measurements in a finite time interval is confined in a proper subspace of the Hilbert space. This phenomenon is called "quantum Zeno effect": a particle under intensive…

量子物理 · 物理学 2010-02-01 Paolo Facchi , Sandro Graffi , Marilena Ligabò

A quantum system being observed evolves more slowly. This `'quantum Zeno effect'' is reviewed with respect to a previous attempt of demonstration, and to subsequent criticism of the significance of the findings. A recent experiment on an…

量子物理 · 物理学 2015-06-26 Chr. Wunderlich , Chr. Balzer , P. E. Toschek

We study the dynamics of a quantum dot embedded in a three-dimensional microcavity in the strong coupling regime in which the quantum dot exciton has an energy close to the frequency of a confined cavity mode. Under the continuous pumping…

介观与纳米尺度物理 · 物理学 2009-11-10 J. I. Perea , D. Porras , C. Tejedor

In the ideal quantum Zeno effect, repeated quantum projective measurements can freeze the coherent dynamics of a quantum system. However, in the weak quantum Zeno regime, measurement back-actions can allow the sensing of semi-classical…

We critically study the possibility of quantum Zeno effect for indirect measurements. If the detector is prepared to detect the emitted signal from the core system, and the detector does not reflect the signal back to the core system, then…

量子物理 · 物理学 2009-11-10 M. Hotta , M. Morikawa

We consider a point particle in one dimension initially confined to a finite spatial region whose state is frequently monitored by projection operators onto that region. In the limit of infinitely frequent monitoring, the state never…

量子物理 · 物理学 2014-04-30 D. J. Bedingham , J. J. Halliwell

We study the quantum Zeno effect (QZE) and quantum anti-Zeno effect (QAZE) of the multimode quantum Rabi model(MQRM). We derive an analytic expression for the decay rate of the survival probability where cavity modes are initially prepared…

量子物理 · 物理学 2019-04-09 Shu He , Chen Wang , Xue-Zao Ren , Li-Wei Duan , Qing-Hu Chen

We study a one-dimensional system of interacting spinless fermions subject to a localized loss, where the interplay of gapless quantum fluctuations and particle interactions leads to an incarnation of the quantum Zeno effect of genuine…

Spontaneously generated coherence and enhanced dispersion in a V-type, three-level atomic system interacting with a single mode field can considerably reduce the radiative and cavity decay rates. This may eliminate the use of high finesse,…

光学 · 物理学 2017-04-05 Amitabh Joshi , Juan D. Serna

The quantum Zeno effect is a striking feature of quantum mechanics with foundational implications and practical applications in quantum control, error suppression, and error correction. In recent years, the effect has branched off into a…

量子物理 · 物理学 2025-09-19 Sacha Greenfield , Archana Kamal , Justin Dressel , Eli Levenson-Falk

We report the control of spontaneous emission from CdSe/ZnS core-shell quantum dots coupled to novel open-access optical microcavities. The cavities are fabricated by focused ion beam milling, and provide mode volumes less than a cubic…

The evolution of a quantum system undergoing very frequent measurements takes place in a proper subspace of the total Hilbert space (quantum Zeno effect). When the measuring apparatus is included in the quantum description, the Zeno effect…

量子物理 · 物理学 2017-08-23 P. Facchi

We find that when the environment of a two-level system has an energy spectrum with a lower bound but without an upper one, the survival probability of the spontaneous emission of the two-level system scales with the spatial dimension $D$…

量子物理 · 物理学 2025-12-17 Hiroki Nakabayashi , Hayato Kinkawa , Takano Taira , Naomichi Hatano

We have previously shown that the quantum Zeno effect can be used to implement quantum logic gates for quantum computing applications, where the Zeno effect was produced using a strong two-photon absorbing medium. Here we show that the Zeno…

量子物理 · 物理学 2015-05-13 B. C. Jacobs , J. D. Franson