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We study fermions in a Mach-Zehnder interferometer, subject to a quantum-mechanical environment leading to inelastic scattering, decoherence, renormalization effects, and time-dependent conductance fluctuations. Both the loss of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Florian Marquardt

We show that a quantum particle subjected to a positive force in one path of a Mach-Zehnder interferometer and a null force in the other path may receive a negative average momentum transfer when it leaves the interferometer by a particular…

Quantum Physics · Physics 2018-12-18 Raul Corrêa , Marina F. B. Cenni , Pablo L. Saldanha

We performed the conductance and the shot noise measurements in an electronic Mach-Zehnder interferometer. The visibility of the interference is investigated as a function of the electron temperature that is derived from the thermal noise…

Advances in quantum computing are a rapidly growing threat towards modern cryptography. Quantum key distribution (QKD) provides long-term security without assuming the computational power of an adversary. However, inconsistencies between…

Quantum Physics · Physics 2019-01-18 Henry Semenenko , Philip Sibson , Mark G. Thompson , Chris Erven

We experimently demonstrate the interference of dephasing quantum channel using single photon Mach-Zender interferometer. We extract the information inaccessible to the technology of quantum tomography. Further, We introduce the application…

Quantum Physics · Physics 2007-05-23 Guo-Yong Xiang , Jian Li , Guang-Can Guo

The delayed-choice quantum eraser has long been a subject of controversy, and has been looked at as being incomprehensible to having retro-causal effect in time. Here the delayed-choice quantum eraser is theoretically analyzed using…

Quantum Physics · Physics 2020-08-28 Tabish Qureshi

We show how to implement a Mach-Zehnder interferometry based upon a string of trapped ions with artificial nonlinear interactions. By adiabatically sweeping down/up the coupling strength between two involved internal states of the ions, we…

Quantum Physics · Physics 2014-01-23 Y. M. Hu , W. L. Yang , X. Xiao , Mang Feng , Chaohong Lee

A technique complementary to those for spectral lines is proposed for the observation of continuum radiation. As, quantum mechanically, the radiation is a mixture of pure states, it should be possible to measure the temporal coherence of…

Quantum Physics · Physics 2015-10-08 Richard Fong

In a quantum LiDAR system, to achieve a better resolution and sensitivity, detection scheme plays an important role. We propose a novel detection scheme in which the photo detector considers only the $4n$ number of photons, where $n \in…

Quantum Physics · Physics 2026-04-17 Priyanka Sharma , Manoj K Mishra , Devendra Kumar Mishra

We introduce and describe a technique for distance sensing, based on second-order interferometry of thermal light. The method is based on measuring correlation between intensity fluctuations on two detectors, and provides estimates of the…

Quantum key distribution allows secret key generation with information theoretical security. It can be realized with photonic integrated circuits to benefit the tiny footprints and the large-scale manufacturing capacity. Continuous-variable…

Quantum Physics · Physics 2024-03-08 Yiming Bian , Yang Li , Xuesong Xu , Tao Zhang , Yan Pan , Wei Huang , Song Yu , Lei Zhang , Yichen Zhang , Bingjie Xu

Temperature estimation, known as thermometry, is a critical sensing task for physical systems operating in the quantum regime. Indeed, thermal fluctuations can significantly degrade quantum coherence. Therefore, accurately determining the…

Based on modern quantum measurement theory, we use Zurek's "triple model" to study, from the viewpoint of quantum information theory, the wave and particle nature of a photon in a symmetric Mach-Zehnder interferometer. In the process of…

Quantum Physics · Physics 2017-03-08 Yan Liu , Jing Lu , Lan Zhou , Franco Nori

On-demand creation of entanglement between distant qubits is a necessary ingredient for distributed quantum computation. We propose an entanglement scheme that allows for single-shot deterministic entanglement creation by detecting a single…

Mesoscale and Nanoscale Physics · Physics 2017-05-18 Christoph Ohm , Fabian Hassler

Intrusion Detection is one of major threats for organization. The approach of intrusion detection using text processing has been one of research interests which is gaining significant importance from researchers. In text mining based…

Cryptography and Security · Computer Science 2016-03-15 Gunupudi RajeshKumar , N Mangathayaru , G Narsimha

A neutron interferometric test of interaction-free detection of the presence of an absorbing object in one arm of a neutron interferometer has been performed. Despite deviations from the ideal performance characteristics of a Mach-Zehnder…

Quantum Physics · Physics 2009-10-30 Meinrad Hafner , Johann Summhammer

A novel single-photon Mach-Zehnder interferometer terminated at two different frequencies realizes the nonlinear frequency conversion of optical quantum superposition states. The information-preserving character of the relevant unitary…

Quantum Physics · Physics 2007-05-23 P. Mataloni , G. Giorgi , F. De Martini

The direct counterfactual quantum communication protocol involving double chained Mach-Zehnder interferometers requires a single photon input. Here, we show that even with multiphoton light sources, including a strong coherent light source…

Quantum Physics · Physics 2022-10-05 Zheng-Hong Li , Shang-Yue Feng , M. Al-Amri , M. Suhail Zubairy

We report a two-photon interference experiment in which the detected photons have very different properties. The interference is observed even when no effort is made to mask the distinguishing features before the photons are detected. The…

Quantum Physics · Physics 2007-05-23 Yoon-Ho Kim , Warren P. Grice

We consider a mesoscopic circuit in the quantum Hall effect regime comprising two synchronized single-particle sources emitting particles into a Mach-Zehnder interferometer. While particles from one source can possibly interfere at the…

Mesoscale and Nanoscale Physics · Physics 2011-10-25 Stefan Juergens , Janine Splettstoesser , Michael Moskalets