Questions tagged [ibm]
For questions about IBM's quantum computing processors and devices. For their cloud-computing service use the [ibm-q-experience] tag instead.
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Can we simulate quantum many-body systems with IBMQ Experience?
Consider physical systems such as electrons in metals, or Bose-Einstein condensates, or any crystal, which are realised in the real three-dimensional space.
If we want to simulate these systems on a ...
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1answer
94 views
IBM Quantum experience
What is this Dedicated use of IBMq_16_melbourne? I am trying to run a simulation but it is not running. Is there any way to run the simulations? When is the backend coming online again for normal ...
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1answer
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Problem with initial_layout on Qiskit/IBMQ: 'Not enough qubits in CouplingGraph'
I am trying to run an execution on IBMQx2 where I can specify the physical qubits to which I apply gates. The execution without the initial_layout runs fine, but ...
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Comparing CPU to QPU In terms of processing power
The current processors are limited by the speed of the electrons but quantum processors take advantage of the properties of subatomic particles. But the question is how to compare the processing power ...
2
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1answer
90 views
IBM Slack links broken
Does anyone know where I can find working Slack invite links to any of IBM's Slack pages? The Slack links on this support page are all broken. Thank you.
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0answers
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IBM Q devices' hardware/resource constraints
I tried to look for the resource constraints but so far haven't been able to find them. They are not present in the GitHub repository that usually provides the hardware information for the different ...
3
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1answer
422 views
IBM's quantum computing capabilities — entangled 18-qubit GHZ states and high coherence times
Here's a blog post that corresponds with what IBM presented at the 2019 March Meeting.
In this post, they claim they've measured qubit T1 relaxation times above 500 microseconds, and claim that they'...
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0answers
32 views
What is the difference in computational power between qubit and bit (transistor)? [duplicate]
If I use for example 5-qubit IBM-Q quantum computer and we accept the law of quantum parallelism ($n$ qubit = $2^n$ ordinary bits), so does it mean that computational power of this computer is equal ...
2
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1answer
131 views
Experiment runtime on IBMQ
I have been trying to get the runtime of my experiment on IBM's quantum computer. I am using the classic stuff, i.e
...
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59 views
Graphing the decoherence of qubits being used to perform an algorithm
How would I be able to graph the decoherence of qubits being used to perform an algorithm? I'm working with the IBMQ Qiskit framework and I'm trying to write a program that allows me to find the ...
2
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1answer
59 views
How many physical qubits are used when I run a program on a IBM Q computer?
How do I find out how many physical-qubits I'm using when I run my program in an IBM Q backend quantum computing system?
3
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2answers
207 views
What is maximum circuit depth and size IBM Q5 and Q16 could handle?
I'm trying to implement a couple of algorithms on ibmq_16_melbourne, so I need to know if this device is able to handle with depth and size of my current circuit or ...
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1answer
95 views
Current limits on Grover search space
I was wondering why till date Grover search has been implemented only till 3 qubits (corresponding to size of database = 8). Refer this paper
The reason why I ask is that we have much larger sized ...
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0answers
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Can “experimental data from a quantum computer” be used to test separability probability conjectures?
An article entitled "Experimental data from a quantum computer verifies the generalize Pauli exclusion principle" by Scott E. Smart, David I. Schuster, and David A. Mazziotti has just appeared
In the ...
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1answer
421 views
D-Wave systems and IBM Q System One
What is the difference between the D-Wave systems and the newly-born IBM Q System One?
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2answers
453 views
How to explain in layman’s terms the significance of the difference of qubits of the D-Wave and IBM QX?
So, @AndrewO mentioned recently that he has had 'encounters' with people wondering why D-Wave has a lot more qubits than IBM. Of course, this comparison is faulty, since the IBM and D-Wave's machine ...
