Deterministic remote entanglement using a chiral quantum interconnect
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866910898625445888 |
|---|---|
| author | Almanakly, Aziza Yankelevich, Beatriz Hays, Max Kannan, Bharath Assouly, Reouven Greene, Alex Gingras, Michael Niedzielski, Bethany M. Stickler, Hannah Schwartz, Mollie E. Serniak, Kyle Wang, Joel I-J. Orlando, Terry P. Gustavsson, Simon Grover, Jeffrey A. Oliver, William D. |
| author_facet | Almanakly, Aziza Yankelevich, Beatriz Hays, Max Kannan, Bharath Assouly, Reouven Greene, Alex Gingras, Michael Niedzielski, Bethany M. Stickler, Hannah Schwartz, Mollie E. Serniak, Kyle Wang, Joel I-J. Orlando, Terry P. Gustavsson, Simon Grover, Jeffrey A. Oliver, William D. |
| contents | Quantum interconnects facilitate entanglement distribution between non-local computational nodes. For superconducting processors, microwave photons are a natural means to mediate this distribution. However, many existing architectures limit node connectivity and directionality. In this work, we construct a chiral quantum interconnect between two nominally identical modules in separate microwave packages. We leverage quantum interference to emit and absorb microwave photons on demand and in a chosen direction between these modules. We optimize the protocol using model-free reinforcement learning to maximize absorption efficiency. By halting the emission process halfway through its duration, we generate remote entanglement between modules in the form of a four-qubit W state with 62.4 +/- 1.6% (leftward photon propagation) and 62.1 +/- 1.2% (rightward) fidelity, limited mainly by propagation loss. A chiral quantum network comprising many modules provides a platform for the exploration of novel many-body physics and quantum simulation. This quantum network architecture enables all-to-all connectivity between non-local processors for modular and extensible quantum computation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_05164 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Deterministic remote entanglement using a chiral quantum interconnect Almanakly, Aziza Yankelevich, Beatriz Hays, Max Kannan, Bharath Assouly, Reouven Greene, Alex Gingras, Michael Niedzielski, Bethany M. Stickler, Hannah Schwartz, Mollie E. Serniak, Kyle Wang, Joel I-J. Orlando, Terry P. Gustavsson, Simon Grover, Jeffrey A. Oliver, William D. Quantum Physics Quantum interconnects facilitate entanglement distribution between non-local computational nodes. For superconducting processors, microwave photons are a natural means to mediate this distribution. However, many existing architectures limit node connectivity and directionality. In this work, we construct a chiral quantum interconnect between two nominally identical modules in separate microwave packages. We leverage quantum interference to emit and absorb microwave photons on demand and in a chosen direction between these modules. We optimize the protocol using model-free reinforcement learning to maximize absorption efficiency. By halting the emission process halfway through its duration, we generate remote entanglement between modules in the form of a four-qubit W state with 62.4 +/- 1.6% (leftward photon propagation) and 62.1 +/- 1.2% (rightward) fidelity, limited mainly by propagation loss. A chiral quantum network comprising many modules provides a platform for the exploration of novel many-body physics and quantum simulation. This quantum network architecture enables all-to-all connectivity between non-local processors for modular and extensible quantum computation. |
| title | Deterministic remote entanglement using a chiral quantum interconnect |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2408.05164 |