Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity
The aim of this work is to study the quantum correlations, entanglement and discord, of two qubits, each one located in its respective cavity, which interact with a common reservoir. Each qubit interacts with its own respective cavity through the emission/absorption of two correlated photons (bi-pho...
| Main Authors: | , , |
|---|---|
| Format: | Online |
| Language: | spa |
| Published: |
Universidad Pedagógica y Tecnológica de Colombia
2020
|
| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/8419 |
| _version_ | 1801706343428521984 |
|---|---|
| author | Gonzalez Sibaja, Francisco Javier Eremeev, Vitalie Villamil, Pablo |
| author_facet | Gonzalez Sibaja, Francisco Javier Eremeev, Vitalie Villamil, Pablo |
| author_sort | Gonzalez Sibaja, Francisco Javier |
| collection | OJS |
| description | The aim of this work is to study the quantum correlations, entanglement and discord, of two qubits, each one located in its respective cavity, which interact with a common reservoir. Each qubit interacts with its own respective cavity through the emission/absorption of two correlated photons (bi-photon). Initially, the atoms are considered in a type of Bell-diagonal state and the cavities in the empty state. The evolution of the correlations is calculated and, for the model with biphotonic interactions without losses of photons through the cavity, the freezing effect of the correlations is found. When there are uniphotonic or biphotonic losses toward the reservoir, a decay of the correlations is evidenced. It is observed that qubits are entanglement over a longer period of time when biphotonic interactions and losses are considered. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-8419 |
| institution | Revista Ciencia en Desarrollo |
| language | spa |
| publishDate | 2020 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-84192021-02-03T17:14:11Z Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity Estudio de correlaciones cuánticas de qubits en cavidades remotas: procesos bifotónicos vs unifótonicos en cada cavidad Gonzalez Sibaja, Francisco Javier Eremeev, Vitalie Villamil, Pablo Correlaciones cuánticas Bi-fotón Qubit Entrelazamiento Discordia cuántica Mecánica Cuántica Quantum correlations Bi-photon Qubit Entanglement Quantum discord Quantum Mechanic The aim of this work is to study the quantum correlations, entanglement and discord, of two qubits, each one located in its respective cavity, which interact with a common reservoir. Each qubit interacts with its own respective cavity through the emission/absorption of two correlated photons (bi-photon). Initially, the atoms are considered in a type of Bell-diagonal state and the cavities in the empty state. The evolution of the correlations is calculated and, for the model with biphotonic interactions without losses of photons through the cavity, the freezing effect of the correlations is found. When there are uniphotonic or biphotonic losses toward the reservoir, a decay of the correlations is evidenced. It is observed that qubits are entanglement over a longer period of time when biphotonic interactions and losses are considered. En este trabajo se estudian las correlaciones cuánticas, entrelazamiento y discordia, de dos qubits ubicados cada uno en su respectiva cavidad, las cuales interactúan con un reservorio común. Cada qubit interactúa con su respectiva cavidad mediante la emisión/absorción de dos fotones correlacionados (bi-fotón). Inicialmente, los átomos se consideran en un estado tipo Bell diagonal y las cavidades en estado vacío. Se calcula la evolución de las correlaciones y, para el modelo con interacciones bifotónicas sin pérdidas de fotones a través de la cavidad, se encuentra el efecto de congelamiento de las correlaciones. Cuando hay pérdidas unifotónicas o bifotónicas hacia el reservorio se evidencia un decaimiento de las correlaciones. Se nota que los qubits se encuentran entrelazados en un lapso de tiempo más largo cuando se considera interacciones y pérdidas bifotónicas. Universidad Pedagógica y Tecnológica de Colombia 2020-01-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/8419 10.19053/01217488.v11.n1.2020.8419 Ciencia En Desarrollo; Vol. 11 No. 1 (2020): Vol 11, Núm.1 (2020): Enero-Junio; 43-48 Ciencia en Desarrollo; Vol. 11 Núm. 1 (2020): Vol 11, Núm.1 (2020): Enero-Junio; 43-48 2462-7658 0121-7488 spa https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/8419/10238 Derechos de autor 2020 CIENCIA EN DESARROLLO |
| spellingShingle | Correlaciones cuánticas Bi-fotón Qubit Entrelazamiento Discordia cuántica Mecánica Cuántica Quantum correlations Bi-photon Qubit Entanglement Quantum discord Quantum Mechanic Gonzalez Sibaja, Francisco Javier Eremeev, Vitalie Villamil, Pablo Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title | Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title_alt | Estudio de correlaciones cuánticas de qubits en cavidades remotas: procesos bifotónicos vs unifótonicos en cada cavidad |
| title_full | Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title_fullStr | Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title_full_unstemmed | Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title_short | Study of quantum correlations of qubits in remote cavities: biphotonic vs uniphotonic processes in each cavity |
| title_sort | study of quantum correlations of qubits in remote cavities biphotonic vs uniphotonic processes in each cavity |
| topic | Correlaciones cuánticas Bi-fotón Qubit Entrelazamiento Discordia cuántica Mecánica Cuántica Quantum correlations Bi-photon Qubit Entanglement Quantum discord Quantum Mechanic |
| topic_facet | Correlaciones cuánticas Bi-fotón Qubit Entrelazamiento Discordia cuántica Mecánica Cuántica Quantum correlations Bi-photon Qubit Entanglement Quantum discord Quantum Mechanic |
| url | https://revistas.uptc.edu.co/index.php/ciencia_en_desarrollo/article/view/8419 |
| work_keys_str_mv | AT gonzalezsibajafranciscojavier studyofquantumcorrelationsofqubitsinremotecavitiesbiphotonicvsuniphotonicprocessesineachcavity AT eremeevvitalie studyofquantumcorrelationsofqubitsinremotecavitiesbiphotonicvsuniphotonicprocessesineachcavity AT villamilpablo studyofquantumcorrelationsofqubitsinremotecavitiesbiphotonicvsuniphotonicprocessesineachcavity AT gonzalezsibajafranciscojavier estudiodecorrelacionescuanticasdequbitsencavidadesremotasprocesosbifotonicosvsunifotonicosencadacavidad AT eremeevvitalie estudiodecorrelacionescuanticasdequbitsencavidadesremotasprocesosbifotonicosvsunifotonicosencadacavidad AT villamilpablo estudiodecorrelacionescuanticasdequbitsencavidadesremotasprocesosbifotonicosvsunifotonicosencadacavidad |
