# Questions tagged [tomography]

Quantum tomography or quantum state tomography is the process of reconstructing the quantum state (density matrix) for a source of quantum systems by measurements on the systems coming from the source. (Wikipedia)

5 questions
Filter by
Sorted by
Tagged with
296 views

### Quantum tomography on two qubits

I would like to do a quantum tomography on two q-bit state. Recently, I successfully did so for one q-bit based on Nielsen-Chuang. They advise to use this formula for one q-bit density operator ...
128 views

### Problem with quantum tomography on two qubits

With reference to question on how to do quantum tomography on two qubits, I would like to ask you for help again. I tried to do the tomography on state \begin{equation}\psi=\frac{1}{2}\begin{pmatrix}...
169 views

### How to perform Quantum Process Tomography for three qubit gates?

I am trying to perform Quantum process tomography (QPT) on three qubit quantum gate. But I cannot find any relevant resource to follow and peform the experiment. I have checked Nielsen and Chuang's ...
We can calculate single qubit state by measuring it in pauli observables {$\sigma_{x},\sigma_{y},\sigma_{z}$} and then looking at its probability distribution. How to do this when we are having joint ...
{"ft_lang_label":"__label__en","ft_lang_prob":0.90172964,"math_prob":0.8688595,"size":1573,"snap":"2020-45-2020-50","text_gpt3_token_len":376,"char_repetition_ratio":0.15615042,"word_repetition_ratio":0.0,"special_character_ratio":0.22123331,"punctuation_ratio":0.08561644,"nsfw_num_words":0,"has_unicode_error":false,"math_prob_llama3":0.96566063,"pos_list":[0],"im_url_duplicate_count":[null],"WARC_HEADER":"{\"WARC-Type\":\"response\",\"WARC-Date\":\"2020-10-31T10:13:53Z\",\"WARC-Record-ID\":\"<urn:uuid:55dc41a9-1efd-4136-86df-07a6a44a5771>\",\"Content-Length\":\"131444\",\"Content-Type\":\"application/http; msgtype=response\",\"WARC-Warcinfo-ID\":\"<urn:uuid:6800e38f-adc6-4f30-98e2-d764032cd450>\",\"WARC-Concurrent-To\":\"<urn:uuid:45ba15a1-4c3c-488e-8bbe-67ecd3a4a84d>\",\"WARC-IP-Address\":\"151.101.65.69\",\"WARC-Target-URI\":\"https://quantumcomputing.stackexchange.com/questions/tagged/tomography?tab=Frequent\",\"WARC-Payload-Digest\":\"sha1:NQ6VBYD54QFOVM4RNQL7U2IPRULVU5BP\",\"WARC-Block-Digest\":\"sha1:K4MKLIXQRP6SL27ADYBJN5OSWYOBAJRH\",\"WARC-Identified-Payload-Type\":\"text/html\",\"warc_filename\":\"/cc_download/warc_2020/CC-MAIN-2020-45/CC-MAIN-2020-45_segments_1603107917390.91_warc_CC-MAIN-20201031092246-20201031122246-00034.warc.gz\"}"}