# Borealis **URL:** https://discuss.pennylane.ai/c/borealis/18.md [Latest](https://discuss.pennylane.ai/latest.md) · [Categories](https://discuss.pennylane.ai/categories.md) --- ## [About the Borealis category](https://discuss.pennylane.ai/t/about-the-borealis-category/1938)
**Author:** [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Replies:** 0
Use this category for questions about Borealis – Xanadu’s quantum computer which achieved quantum computational advantage in 2022. --- ## [Borealis for public usage?](https://discuss.pennylane.ai/t/borealis-for-public-usage/4800)
**Author:** [@\_risto](https://discuss.pennylane.ai/u/_risto)\ **Replies:** 5\ **Last updated:** [September 18, 2024, 1:00am UTC](https://discuss.pennylane.ai/t/borealis-for-public-usage/4800 "2024-09-18T01:00:28Z")
When will Borealis again be available to the public? --- ## [What's the resolution of quadrature measurements?](https://discuss.pennylane.ai/t/whats-the-resolution-of-quadrature-measurements/4697)
**Author:** [@jange](https://discuss.pennylane.ai/u/jange)\ **Replies:** 6\ **Last updated:** [June 11, 2024, 5:46pm UTC](https://discuss.pennylane.ai/t/whats-the-resolution-of-quadrature-measurements/4697 "2024-06-11T17:46:52Z")
Hello, I’m not entirely sure if this is the right place for this question. Take a Homodyne measurement of the position quadrature. Is there a ballpark figure for the resolution and range of measurements possible by the … --- ## [Thesis on ML using real quantum HW](https://discuss.pennylane.ai/t/thesis-on-ml-using-real-quantum-hw/4486)
**Author:** [@skoda](https://discuss.pennylane.ai/u/skoda)\ **Replies:** 1\ **Last updated:** [April 24, 2024, 11:27pm UTC](https://discuss.pennylane.ai/t/thesis-on-ml-using-real-quantum-hw/4486 "2024-04-24T23:27:58Z")
Hi all. I have recently read most of your tutorials and have seen videos on PennyLane. and I was surprised how the quantum machine learning is easy to do! Great Work! So I want to prepare calls for bachelor’s and master … --- ## [Quantum Computer for Bitcoin mining](https://discuss.pennylane.ai/t/quantum-computer-for-bitcoin-mining/2407)
**Author:** [@Jack\_Hausmann](https://discuss.pennylane.ai/u/Jack_Hausmann)\ **Replies:** 5\ **Last updated:** [April 16, 2024, 6:29pm UTC](https://discuss.pennylane.ai/t/quantum-computer-for-bitcoin-mining/2407 "2024-04-16T18:29:17Z")
What I don’t quite understand is that it seems like this quantum computer can calculate everything. My question now is whether it could even be used for Bitcoin mining. --- ## [Quantum advantage](https://discuss.pennylane.ai/t/quantum-advantage/2843)
**Author:** [@Jack\_Hausmann](https://discuss.pennylane.ai/u/Jack_Hausmann)\ **Replies:** 12\ **Last updated:** [April 10, 2024, 10:17pm UTC](https://discuss.pennylane.ai/t/quantum-advantage/2843 "2024-04-10T22:17:07Z")
Hello, how many physical qubits do you use for a logical qubit and can you say how many physical qubits your quantum computer would need to have in order to be universally usable and approximately how long it takes to b… --- ## [Sign up for a new account of the Xanadu Clound](https://discuss.pennylane.ai/t/sign-up-for-a-new-account-of-the-xanadu-clound/3858)
**Author:** [@YangLiu](https://discuss.pennylane.ai/u/YangLiu)\ **Replies:** 1\ **Last updated:** [January 10, 2024, 10:05am UTC](https://discuss.pennylane.ai/t/sign-up-for-a-new-account-of-the-xanadu-clound/3858 "2024-01-10T10:05:58Z")
I could not find the sign-up button. Anyone can help me solve this problem. Thank you! --- ## [Xanadu Borealis - Coherence time, Gate speed](https://discuss.pennylane.ai/t/xanadu-borealis-coherence-time-gate-speed/3165)
**Author:** [@BalancedHomodyne](https://discuss.pennylane.ai/u/BalancedHomodyne)\ **Replies:** 5\ **Last updated:** [December 11, 2023, 6:33pm UTC](https://discuss.pennylane.ai/t/xanadu-borealis-coherence-time-gate-speed/3165 "2023-12-11T18:33:51Z")
Hello. I did experiments about quantum computing using neutral atoms when I was graduate school student. So, I’m not familiar with photonic quantum computer. But recently, I get interested with Borealis in Xanadu. I’… --- ## [Access to Borealis device?](https://discuss.pennylane.ai/t/access-to-borealis-device/3322)
**Author:** [@\_risto](https://discuss.pennylane.ai/u/_risto)\ **Replies:** 5\ **Last updated:** [August 16, 2023, 6:22pm UTC](https://discuss.pennylane.ai/t/access-to-borealis-device/3322 "2023-08-16T18:22:15Z")
How to access Borealis device in https://pennylane.xanadu.ai/? I get: HTTPError: No device with the given target (borealis) exists. --- ## [Calculating nullifier and modfied tdm photonic circuit](https://discuss.pennylane.ai/t/calculating-nullifier-and-modfied-tdm-photonic-circuit/2780)
**Author:** [@Souvik\_Sarkar](https://discuss.pennylane.ai/u/Souvik_Sarkar)\ **Replies:** 7\ **Last updated:** [April 25, 2023, 1:23pm UTC](https://discuss.pennylane.ai/t/calculating-nullifier-and-modfied-tdm-photonic-circuit/2780 "2023-04-25T13:23:34Z")
I want to run an experiment on Borealis which is similar to the given example in time domain photonic circuits documentation (Generation of EPR pair) https://strawberryfields.ai/photonics/demos/run\_time\_domain.html Q1)… --- ## [Loop offsets in Borealis](https://discuss.pennylane.ai/t/loop-offsets-in-borealis/2643)
**Author:** [@hetta](https://discuss.pennylane.ai/u/hetta)\ **Replies:** 1\ **Last updated:** [February 27, 2023, 8:34pm UTC](https://discuss.pennylane.ai/t/loop-offsets-in-borealis/2643 "2023-02-27T20:34:22Z")
Hi, Is there an easy way to turn of the loop offsets in Borealis? I’d like to be able to control the phase-shifter so that I can force them to do nothing. If something like this isn’t possible, how could I access the v… --- ## [Borealis closures for the holidays?](https://discuss.pennylane.ai/t/borealis-closures-for-the-holidays/2402)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 1\ **Last updated:** [January 19, 2023, 3:46pm UTC](https://discuss.pennylane.ai/t/borealis-closures-for-the-holidays/2402 "2023-01-19T15:46:14Z")
Hi Xanadu Team, I see that Borealis has been down today. What days will Borealis be up this week and next week? Thanks. --- ## [What are the allowed Rgate, BSgate, and Sgate values for Borealis?](https://discuss.pennylane.ai/t/what-are-the-allowed-rgate-bsgate-and-sgate-values-for-borealis/2339)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 2\ **Last updated:** [December 27, 2022, 9:24pm UTC](https://discuss.pennylane.ai/t/what-are-the-allowed-rgate-bsgate-and-sgate-values-for-borealis/2339 "2022-12-27T21:24:51Z")
I can tell from trial and error that the allowed Sgate value is 1.143, but trying R and BS gate inputs that are complex values and supported by X8 are leading to error on Borealis. --- ## [Papers that use Borealis](https://discuss.pennylane.ai/t/papers-that-use-borealis/2384)
**Author:** [@Denis-Stanev](https://discuss.pennylane.ai/u/Denis-Stanev)\ **Replies:** 1\ **Last updated:** [December 21, 2022, 3:44pm UTC](https://discuss.pennylane.ai/t/papers-that-use-borealis/2384 "2022-12-21T15:44:37Z")
Hi, I wanted to ask if there is a list of papers that use Borealis, to get a better understanding of what Borealis is capable of, and what has already been done. Thanks a lot. --- ## [Possible to run a displacement Gate on Xanadu Hardware?](https://discuss.pennylane.ai/t/possible-to-run-a-displacement-gate-on-xanadu-hardware/2329)
**Author:** [@alicewithoutbob](https://discuss.pennylane.ai/u/alicewithoutbob)\ **Replies:** 3\ **Last updated:** [December 12, 2022, 11:09pm UTC](https://discuss.pennylane.ai/t/possible-to-run-a-displacement-gate-on-xanadu-hardware/2329 "2022-12-12T23:09:39Z")
Hi I have a circuit containing a Dgate that I would like to run on a photonics hardware. Looking at both chips available on Xanadu cloud I understood that : Borealis works as a time domain circuit and allows for one … --- ## [Both devices are down basically all this week? Any major reason for this?](https://discuss.pennylane.ai/t/both-devices-are-down-basically-all-this-week-any-major-reason-for-this/2239)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 5\ **Last updated:** [November 2, 2022, 11:59pm UTC](https://discuss.pennylane.ai/t/both-devices-are-down-basically-all-this-week-any-major-reason-for-this/2239 "2022-11-02T23:59:09Z")
Also, any mailing list or API that can be used to get this outage data ASAP? Thanks --- ## [\_contains\_ in borealis compiler has a string?](https://discuss.pennylane.ai/t/contains-in-borealis-compiler-has-a-string/2250)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 2\ **Last updated:** [October 31, 2022, 10:23pm UTC](https://discuss.pennylane.ai/t/contains-in-borealis-compiler-has-a-string/2250 "2022-10-31T22:23:59Z")
Hi, I got this error when trying to run some code locally on the Borealis: File “~\\strawberryfields\\compilers\\compiler.py”, line 372, in contains return self.x - self.atol \<= item \<= self.y + self.atol\* TypeError: ‘\<… --- ## [Is\_ptype in blackbird.listener not found](https://discuss.pennylane.ai/t/is-ptype-in-blackbird-listener-not-found/2251)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 2\ **Last updated:** [October 31, 2022, 10:22pm UTC](https://discuss.pennylane.ai/t/is-ptype-in-blackbird-listener-not-found/2251 "2022-10-31T22:22:38Z")
Hi, I was trying to run the quickstart circuit for Borealis locally and got this error: ImportError: cannot import name ‘is\_ptype’ from ‘blackbird.listener’ (~/blackbird/listener.py) I commented out code requiring is\_… --- ## [Error rate and compatibility](https://discuss.pennylane.ai/t/error-rate-and-compatibility/2172)
**Author:** [@Lucas\_Caetano](https://discuss.pennylane.ai/u/Lucas_Caetano)\ **Replies:** 1\ **Last updated:** [September 23, 2022, 3:03pm UTC](https://discuss.pennylane.ai/t/error-rate-and-compatibility/2172 "2022-09-23T15:03:45Z")
Hello, I would like to know the error rate of Borealis and if it’s compatible with classical ML frameworks such as Pytorch and Tensorflow --- ## [Available squeezing parameters](https://discuss.pennylane.ai/t/available-squeezing-parameters/2104)
**Author:** [@Emil\_Zak](https://discuss.pennylane.ai/u/Emil_Zak)\ **Replies:** 2\ **Last updated:** [August 18, 2022, 6:20am UTC](https://discuss.pennylane.ai/t/available-squeezing-parameters/2104 "2022-08-18T06:20:29Z")
Hi there, I was wondering if the present state of Borealis carries the capability of injecting different squeezing parameters into different input modes. For example can we prepare an input state with squeezing paramete… --- ## [Does Pennylane-SF Plugin simmulate Borealis](https://discuss.pennylane.ai/t/does-pennylane-sf-plugin-simmulate-borealis/2053)
**Author:** [@PhilippHS](https://discuss.pennylane.ai/u/PhilippHS)\ **Replies:** 17\ **Last updated:** [August 10, 2022, 8:53pm UTC](https://discuss.pennylane.ai/t/does-pennylane-sf-plugin-simmulate-borealis/2053 "2022-08-10T20:53:35Z")
Hello, I am working on a Quanten Neuronal Network which includes on the pennylane template CVNeuralNetLayers. I have to try it on hardware in the coming month and hoped to be able to do so on Borealis (via AWS Braket Hy… --- ## [400 client error when running in Jupyterlab on Xanadu website](https://discuss.pennylane.ai/t/400-client-error-when-running-in-jupyterlab-on-xanadu-website/1953)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 6\ **Last updated:** [June 13, 2022, 3:19pm UTC](https://discuss.pennylane.ai/t/400-client-error-when-running-in-jupyterlab-on-xanadu-website/1953 "2022-06-13T15:19:01Z")
Logging in via https://pennylane.xanadu.ai/, I tried both the Borealis quickstart and the beginner Borealis tutorial. In both cases, I received a 400 client error at the point of running the circuit on the device. I trie… --- ## [Hours of operation](https://discuss.pennylane.ai/t/hours-of-operation/1950)
**Author:** [@Samarth\_Sandeep](https://discuss.pennylane.ai/u/Samarth_Sandeep)\ **Replies:** 2\ **Last updated:** [June 9, 2022, 5:13pm UTC](https://discuss.pennylane.ai/t/hours-of-operation/1950 "2022-06-09T17:13:31Z")
Great work on launching Borealis! According to AWS Braket, the device is only online M-F 15:00-17:00 UTC. Are these the same operating hours if one is using the strawberryfields API directly? --- ## [Borealis is qubit-based?](https://discuss.pennylane.ai/t/borealis-is-qubit-based/1956)
**Author:** [@Kuma-quant2](https://discuss.pennylane.ai/u/Kuma-quant2)\ **Replies:** 2\ **Last updated:** [June 7, 2022, 1:25am UTC](https://discuss.pennylane.ai/t/borealis-is-qubit-based/1956 "2022-06-07T01:25:42Z")
Hi, friends. I try to study GBS using Borealis. About the machine, “Borealis boasts over 216 squeezed-state qubits” can be seen in news release. I’m cofusing. What “qubits” mean in this context? What is the differenc… --- ## [Quantum computational advantage with Borealis](https://discuss.pennylane.ai/t/quantum-computational-advantage-with-borealis/1939)
**Author:** [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Replies:** 0\ **Last updated:** [June 1, 2022, 3:43pm UTC](https://discuss.pennylane.ai/t/quantum-computational-advantage-with-borealis/1939 "2022-06-01T15:43:49Z")
We are thrilled to announce that Xanadu has achieved quantum computational advantage using our latest photonic quantum computer, Borealis! :tada::tada::tada: Our demonstration, published in Nature, is a pivotal step in …