From 31ca7f733cf39cc009d3a0a7e8e39533ed40f795 Mon Sep 17 00:00:00 2001
From: "Victor V. Albert" <valbert4@gmail.com>
Date: Mon, 13 Jan 2025 12:57:30 -0500
Subject: [PATCH] ring_cpc

---
 .../qubits/small_distance/ring_cpc.yml        | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 codes/quantum/qubits/small_distance/ring_cpc.yml

diff --git a/codes/quantum/qubits/small_distance/ring_cpc.yml b/codes/quantum/qubits/small_distance/ring_cpc.yml
new file mode 100644
index 000000000..f0baebfde
--- /dev/null
+++ b/codes/quantum/qubits/small_distance/ring_cpc.yml
@@ -0,0 +1,34 @@
+#######################################################
+## This is a code entry in the error correction zoo. ##
+##       https://github.com/errorcorrectionzoo       ##
+#######################################################
+
+code_id: ring_cpc
+physical: qubits
+logical: qubits
+
+name: '\([[2^r+r, 2^r-r-2, 3]]\) Ring CPC code'
+short_name: 'Ring CPC'
+introduced: '\cite{arxiv:1611.08012}'
+
+# shortening removes all-ones vector
+description: |
+  A family of \([[2^r+r, 2^r-r-2, 3]]\) CPC codes for \(r \geq 3\) whose matrices are based on the shortened version of the \([2^r-1,2^r-r-1,3]\) Hamming code.
+  See \cite[Thm. 4]{arxiv:1611.08012} for their stabilizer generator matrix.
+
+
+
+relations:
+  parents:
+    - code_id: cpc
+    - code_id: small_distance_qubit_stabilizer
+  cousins:
+    - code_id: 'The ring CPC code is obtained from the shortened Hamming code via the CPC construction \cite{arxiv:1611.08012}.'
+
+
+# Begin Entry Meta Information
+_meta:
+  # Change log - most recent first
+  changelog:
+    - user_id: VictorVAlbert
+      date: '2025-01-13'