Quantum Sensing and Measurement issueshttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues2021-10-18T12:20:50Zhttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/17HW 6 b) c)2021-10-18T12:20:50ZIgnacio Fernandez GrañaHW 6 b) c)Answer is not updatedAnswer is not updatedhttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/16HW 62021-10-18T10:31:12ZIgnacio Fernandez GrañaHW 6Maybe it would be useful for the students if we provide the Hamiltonian so that they use the same notation from the beginning (so they write the energies with the Larmor frecuency from the beginning, as it is used later in the exercise)Maybe it would be useful for the students if we provide the Hamiltonian so that they use the same notation from the beginning (so they write the energies with the Larmor frecuency from the beginning, as it is used later in the exercise)https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/15HW 4, exercise 12021-10-18T10:04:18ZIgnacio Fernandez GrañaHW 4, exercise 1Typo in the definition of the momentum in terms of annihilation/creation operators comparing it to the lecture notes, should be p=(-i*hbar/2*x_pfz)(a-a^dagger), so there's a 2 missing in the denominatorTypo in the definition of the momentum in terms of annihilation/creation operators comparing it to the lecture notes, should be p=(-i*hbar/2*x_pfz)(a-a^dagger), so there's a 2 missing in the denominatorhttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/14HW 2, 1a2021-10-18T09:18:29ZIgnacio Fernandez GrañaHW 2, 1aMissing an absolute value when writing down dR/dx.Missing an absolute value when writing down dR/dx.https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/13problem with build pipeline2021-01-18T08:08:09ZGary Steeleproblem with build pipelinehttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/jobs/157347
```
$ python execute.py
Traceback (most recent call last):
File "execute.py", line 66, in <module>
'metadata': {'path':...https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/jobs/157347
```
$ python execute.py
Traceback (most recent call last):
File "execute.py", line 66, in <module>
'metadata': {'path': 'src/code'}
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/templateexporter.py", line 307, in from_notebook_node
nb_copy, resources = super(TemplateExporter, self).from_notebook_node(nb, resources, **kw)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 139, in from_notebook_node
nb_copy, resources = self._preprocess(nb_copy, resources)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/exporters/exporter.py", line 316, in _preprocess
nbc, resc = preprocessor(nbc, resc)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/base.py", line 47, in __call__
return self.preprocess(nb, resources)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 403, in preprocess
with self.setup_preprocessor(nb, resources, km=km):
File "/opt/conda/lib/python3.7/contextlib.py", line 112, in __enter__
return next(self.gen)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 345, in setup_preprocessor
self.km, self.kc = self.start_new_kernel(**kwargs)
File "/opt/conda/lib/python3.7/site-packages/nbconvert/preprocessors/execute.py", line 296, in start_new_kernel
kc.wait_for_ready(timeout=self.startup_timeout)
File "/opt/conda/lib/python3.7/site-packages/jupyter_client/blocking/client.py", line 108, in wait_for_ready
raise RuntimeError("Kernel didn't respond in %d seconds" % timeout)
RuntimeError: Kernel didn't respond in 60 seconds
Running after_script
00:02
Uploading artifacts for failed job
00:03
Authenticating with credentials from /root/.docker/config.json
ERROR: Job failed: exit code 1
```https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/11Hw7, 1) c), d)2020-11-26T11:07:33Zjdkoenig23Hw7, 1) c), d)The values of $\rho_{11}$ and $\rho_{22}$ should be swapped, and thus the sign of Tr($\rho S_Z$) also changes.The values of $\rho_{11}$ and $\rho_{22}$ should be swapped, and thus the sign of Tr($\rho S_Z$) also changes.https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/10hw6 #1 code simulation2020-11-20T11:33:53Zchrysaor4hw6 #1 code simulationcheck for bugs in codecheck for bugs in codehttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/9hw6 1a2020-11-20T11:27:59Zchrysaor4hw6 1aHamiltonian off by a minus signHamiltonian off by a minus signhttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/8hw6 1a2021-10-18T10:22:02Zchrysaor4hw6 1aoff by a factor of hbar in definition of Hamiltonianoff by a factor of hbar in definition of Hamiltonianhttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/7Hw 3, 2b)2020-11-13T11:44:36Zjdkoenig23Hw 3, 2b)The answer of kOhm seems it should be in MOhm instead. This would also change the result for S_vv later on.The answer of kOhm seems it should be in MOhm instead. This would also change the result for S_vv later on.https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/6hw2 #a2020-11-12T11:44:16Zchrysaor4hw2 #atechnically should be 1/4 - 1/4 * cos(...) if the *minima* are supposed to occur exactly at k * lambda/2, not just be spaced by that amounttechnically should be 1/4 - 1/4 * cos(...) if the *minima* are supposed to occur exactly at k * lambda/2, not just be spaced by that amounthttps://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/5hw2 #c2021-10-18T09:28:57Zchrysaor4hw2 #cextra factor of 1/4? was R_0 subbed for twice?extra factor of 1/4? was R_0 subbed for twice?https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/4Hw2 b)2021-10-18T09:26:01Zjdkoenig23Hw2 b)I think that dR/dx = 2*pi/lambda seems incorrect given the expression in the previous part.I think that dR/dx = 2*pi/lambda seems incorrect given the expression in the previous part.https://gitlab.kwant-project.org/quantum-sensing-and-measurement/quantum-sensing-and-measurement/-/issues/2hw1 #22021-10-18T08:42:09Zchrysaor4hw1 #2I think how to infer roughly width of the bandwidth of the lock-in amplifier is confusing/kinda hand wavy, though reading enough of the wiki page on lock in amplifiers helpedI think how to infer roughly width of the bandwidth of the lock-in amplifier is confusing/kinda hand wavy, though reading enough of the wiki page on lock in amplifiers helped2020-11-13