Stabilizing two-qubit entanglement by mimicking a squeezed environment
It is well known that qubits immersed in a squeezed vacuum environment exhibit many exotic phenomena, including dissipative entanglement stabilization. Here we show that these effects only require interference between excitation and decay processes, and can be faithfully mimicked without nonclassica...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-04-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.4.023010 |
| _version_ | 1797210794661773312 |
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| author | L. C. G. Govia A. Lingenfelter A. A. Clerk |
| author_facet | L. C. G. Govia A. Lingenfelter A. A. Clerk |
| author_sort | L. C. G. Govia |
| collection | DOAJ |
| description | It is well known that qubits immersed in a squeezed vacuum environment exhibit many exotic phenomena, including dissipative entanglement stabilization. Here we show that these effects only require interference between excitation and decay processes, and can be faithfully mimicked without nonclassical light using a simple classical temporal modulation. We present schemes that harness this idea to stabilize entanglement between two remote qubits coupled via a transmission line or waveguide, where either the qubit-waveguide coupling is modulated, or the qubits are directly driven. We analyze the resilience of these approaches against various imperfections and also characterize the trade-off between the speed and quality of entanglement stabilization. Our protocols are compatible with state-of-the-art cavity QED systems. |
| first_indexed | 2024-04-24T10:16:16Z |
| format | Article |
| id | doaj.art-76b3d6d8b0154a51b62874d4645ce784 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:16:16Z |
| publishDate | 2022-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-76b3d6d8b0154a51b62874d4645ce7842024-04-12T17:19:35ZengAmerican Physical SocietyPhysical Review Research2643-15642022-04-014202301010.1103/PhysRevResearch.4.023010Stabilizing two-qubit entanglement by mimicking a squeezed environmentL. C. G. GoviaA. LingenfelterA. A. ClerkIt is well known that qubits immersed in a squeezed vacuum environment exhibit many exotic phenomena, including dissipative entanglement stabilization. Here we show that these effects only require interference between excitation and decay processes, and can be faithfully mimicked without nonclassical light using a simple classical temporal modulation. We present schemes that harness this idea to stabilize entanglement between two remote qubits coupled via a transmission line or waveguide, where either the qubit-waveguide coupling is modulated, or the qubits are directly driven. We analyze the resilience of these approaches against various imperfections and also characterize the trade-off between the speed and quality of entanglement stabilization. Our protocols are compatible with state-of-the-art cavity QED systems.http://doi.org/10.1103/PhysRevResearch.4.023010 |
| spellingShingle | L. C. G. Govia A. Lingenfelter A. A. Clerk Stabilizing two-qubit entanglement by mimicking a squeezed environment Physical Review Research |
| title | Stabilizing two-qubit entanglement by mimicking a squeezed environment |
| title_full | Stabilizing two-qubit entanglement by mimicking a squeezed environment |
| title_fullStr | Stabilizing two-qubit entanglement by mimicking a squeezed environment |
| title_full_unstemmed | Stabilizing two-qubit entanglement by mimicking a squeezed environment |
| title_short | Stabilizing two-qubit entanglement by mimicking a squeezed environment |
| title_sort | stabilizing two qubit entanglement by mimicking a squeezed environment |
| url | http://doi.org/10.1103/PhysRevResearch.4.023010 |
| work_keys_str_mv | AT lcggovia stabilizingtwoqubitentanglementbymimickingasqueezedenvironment AT alingenfelter stabilizingtwoqubitentanglementbymimickingasqueezedenvironment AT aaclerk stabilizingtwoqubitentanglementbymimickingasqueezedenvironment |