Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Ilo-Okeke, Ebubechukwu O."'
Autor:
Ilo-Okeke, Ebubechukwu O., Byrnes, Tim
We present a theory for quantum nondemolition (QND) measurements of an atomic ensemble in the presence of spontaneous emission. We derive the master equation that governs the evolution of the ground state of the atoms and the quantum state of light.
Externí odkaz:
http://arxiv.org/abs/2405.15704
Autor:
Gao, Shuai, Chaudhary, Manish, Pyrkov, Alexey N., Ilo-Okeke, Ebubechukwu O., Meng, Xin, Feng, Jingyan, Khan, Muhammad Jamil, Byners, Tim, Lou, Chaogang
The theory of quantum information processing for macroscopic qubits is based on the fact that every macroscopic qubit has a conserved number of particles. However, from an experimental point of view, every such qubit experiences processes of decohere
Externí odkaz:
http://arxiv.org/abs/2405.07153
Autor:
Gao, Shuai, Li, Shuang, Chaudhary, Manish, Prest, Matthew, Ilo-Okeke, Ebubechukwu O., Ivannikov, Valentin, Byrnes, Tim
We study the effects of decoherence in the form of optical phase diffusion, photon loss and gain, and atomic dephasing in entangled atomic ensembles produced via quantum nondemolition (QND) measurements. For the optical decoherence channels, we use t
Externí odkaz:
http://arxiv.org/abs/2302.13062
We develop a scheme to prepare a macroscopic maximally entangled state (MMES) between two atomic ensembles using adaptive quantum nondemolition (QND) measurements. The quantum state of the system is evolved using a sequence of QND measurements follow
Externí odkaz:
http://arxiv.org/abs/2302.07526
Autor:
Ilo-Okeke, Ebubechukwu O., Chen, Ping, Li, Shuang, Anusionwu, Bede C., Ivannikov, Valentin, Byrnes, Tim
We derive a measurement operator corresponding to a quantum nondemolition (QND) measurement of an atomic ensemble. The quantum measurement operator takes the form of a positive operator valued measure (POVM) and is valid for arbitrary interaction tim
Externí odkaz:
http://arxiv.org/abs/2301.05910
Autor:
Kondappan, Manikandan, Chaudhary, Manish, Ilo-Okeke, Ebubechukwu O., Ivannikov, Valentin, Byrnes, Tim
We show that quantum nondemolition (QND) measurements can be used to realize measurement-based imaginary time evolution. In our proposed scheme, repeated weak QND measurements are used to estimate the energy of a given Hamiltonian. Based on this esti
Externí odkaz:
http://arxiv.org/abs/2210.06923
Autor:
Ilo-Okeke, Ebubechukwu O., Kondappan, Manikandan, Chen, Ping, Mao, Yuping, Ivannikov, Valentin, Byrnes, Tim
Publikováno v:
Phys. Rev. A 107, 052604(2023)
We analyze a scheme that uses quantum nondemolition measurements to induce squeezing of a spinor Bose-Einstein condensate in a double well trap. In a previous paper [Ilo-Okeke et al. Phys. Rev. A \textbf{104}, 053324 (2021)], we introduced a model to
Externí odkaz:
http://arxiv.org/abs/2209.07915
Autor:
Ilo-Okeke, Ebubechukwu O., Ji, Yangxu, Chen, Ping, Mao, Yuping, Kondappan, Manikandan, Ivannikov, Valentin, Xiao, Yanhong, Byrnes, Tim
Publikováno v:
Phys. Rev. A 106, 033314 (2022)
We introduce a procedure to generate supersinglets, the multipartite generalization of angular momentum singlet states. A supersinglet is defined as a total spin zero state consisting of $ N $ spin-$ j $ particles. They are highly entangled and have
Externí odkaz:
http://arxiv.org/abs/2204.07538
Autor:
Mao, Yuping, Chaudhary, Manish, Kondappan, Manikandan, Shi, Junheng, Ilo-Okeke, Ebubechukwu O., Ivannikov, Valentin, Byrnes, Tim
We introduce a method to perform imaginary time evolution in a controllable quantum system using measurements and conditional unitary operations. By performing a sequence of weak measurements based on the desired Hamiltonian constructed by a Suzuki-T
Externí odkaz:
http://arxiv.org/abs/2202.09100
Autor:
Gao, Shuai, Ilo-Okeke, Ebubechukwu O., Mao, Yuping, Kondappan, Manikandan, Aristizabal-Zuluaga, Juan E., Ivannikov, Valentin, Byrnes, Tim
We study the robustness of quantum nondemolition (QND) measurement-induced entanglement between Bose-Einstein Condensates (BECs). We consider an experimental scheme where two BECs are placed in the paths of a Mach-Zehnder interferometer, and a QND in
Externí odkaz:
http://arxiv.org/abs/2110.08990